| artist,genre,country | |
| G.A.L.F.,Symphonic Prog,Brazil | |
| G.A.O.S.,Jazz Rock/Fusion,Japan | |
| GA'AN,Zeuhl,United States | |
| GÄA,Krautrock,Germany | |
| GABRIEL,Neo-Prog,Argentina | |
| GABRIEL BONDAGE,Crossover Prog,United States | |
| TH ABRIEL CONSTRUCT,Experimental/Post Metal,United States | |
| PETE ABRIEL,Crossover Prog,United Kingdom | |
| GADADU,Crossover Prog,United States | |
| GAIA CONSORT,Prog Folk,United States | |
| GAILLION,Neo-Prog,United States | |
| TH AK OMEK,Eclectic Prog,United States | |
| GALAAD,Eclectic Prog,Switzerland | |
| GALACTIC COWBOY ORCHESTRA,Crossover Prog,United States | |
| GALACTIC COWBOYS,Progressive Metal,United States | |
| GALACTIC EXPLORERS,Progressive Electronic,Germany | |
| GALACTICKA,Psychedelic/Space Rock,Finland | |
| GALADRIEL,Neo-Prog,Spain | |
| GALADRIEL,Prog Folk,Australia | |
| GALAHAD,Prog Folk,Germany | |
| GALAHAD,Neo-Prog,United Kingdom | |
| GALÁPAGOS,Psychedelic/Space Rock,Argentina | |
| DIAMAND ALÁS,RIO/Avant-Prog,United States | |
| GALASPHERE 347,Symphonic Prog,Multi-National | |
| GALAXY,Psychedelic/Space Rock,Germany | |
| GALAXY-LIN,Crossover Prog,Netherlands | |
| GALERIA DE RAICES,Crossover Prog,Argentina | |
| GALIÉ,Symphonic Prog,Mexico | |
| STEFANO LUP ALIFI,Rock Progressivo Italiano,Italy | |
| GALIJA,Crossover Prog,Yugoslavia | |
| GALL,Neo-Prog,Poland | |
| GALLANT FARM,Neo-Prog,Italy | |
| GALLEON,Neo-Prog,Sweden | |
| GALLERY,Crossover Prog,Norway | |
| GALLERY,Prog Folk,United Kingdom | |
| GALLEY BEGGAR,Prog Folk,United Kingdom | |
| JACOP ALLI,Progressive Metal,Italy | |
| GALLIARD,Jazz Rock/Fusion,United Kingdom | |
| GALLOWS HYMN,Tech/Extreme Prog Metal,United States | |
| GAM,Krautrock,Germany | |
| GAMALON,Jazz Rock/Fusion,United States | |
| GAMBIT,Neo-Prog,France | |
| GAMMA REPEATER,Crossover Prog,United States | |
| GAN EDEN - IL GIARDINO DELLE DELIZIE,Rock Progressivo Italiano,Italy | |
| GANDALF,Crossover Prog,Austria | |
| GANDALF'S FIST,Neo-Prog,United Kingdom | |
| GANDALF'S PROJECT,Crossover Prog,Italy | |
| GANGER,Post Rock/Math rock,United Kingdom | |
| GANNETS,RIO/Avant-Prog,United Kingdom | |
| GANON,Experimental/Post Metal,United States | |
| GAP PARTY,Crossover Prog,Italy | |
| GARAGE A TROIS,Jazz Rock/Fusion,United States | |
| GARAJ MAHAL,Jazz Rock/Fusion,United States | |
| GARAMOND,RIO/Avant-Prog,Italy | |
| ANJ ARBAREK,Crossover Prog,Norway | |
| JA ARBAREK,Jazz Rock/Fusion,Norway | |
| A ARCIA,Jazz Rock/Fusion,United States | |
| GARDEN,Progressive Metal,United Kingdom | |
| GARDEN OF SHADOWS,Experimental/Post Metal,United States | |
| GARDEN WALL,Progressive Metal,Italy | |
| GARDENIA,Eclectic Prog,Argentina | |
| TH ARDENING CLUB,Crossover Prog,Canada | |
| GARGAMEL,Eclectic Prog,Norway | |
| GARGANTUA,RIO/Avant-Prog,Poland | |
| GARGOYL,Progressive Metal,United States | |
| GARLIC,Jazz Rock/Fusion,Italy | |
| GARMARNA,Prog Folk,Sweden | |
| GAROLOU,Prog Folk,Canada | |
| MICHAE ARRISON,Progressive Electronic,United States | |
| MOR ARSON,Progressive Electronic,Canada | |
| GARY SUICIDAL KIDS COMMANDO,Experimental/Post Metal,France | |
| GARYBALDI,Rock Progressivo Italiano,Italy | |
| GASH,Krautrock,Germany | |
| GASPARD,Post Rock/Math rock,Canada | |
| GASTR DEL SOL,Post Rock/Math rock,United States | |
| GASTRIC BAND,Post Rock/Math rock,United Kingdom | |
| GĹTE,Heavy Prog,Norway | |
| GATE 6,Heavy Prog,Netherlands | |
| TH ATE TO ALPHA CENTAURI,Psychedelic/Space Rock,United Kingdom | |
| TH ATHERING,Experimental/Post Metal,Netherlands | |
| GATTCH,Proto-Prog,Slovakia | |
| GATTO MARTE,RIO/Avant-Prog,Italy | |
| DANIE AUTHIER,Neo-Prog,Canada | |
| PATRIC AUTHIER,RIO/Avant-Prog,France | |
| GAYLORD,Eclectic Prog,United States | |
| GAZPACHO,Crossover Prog,Norway | |
| GB ARTS,Progressive Metal,Germany | |
| GDEVA,Psychedelic/Space Rock,Russia | |
| GEBARVATERLI,Krautrock,Germany | |
| GECKO'S TEAR,Eclectic Prog,Italy | |
| PETE EE,Neo-Prog,United Kingdom | |
| RO EESIN,Eclectic Prog,United Kingdom | |
| AVI EFFEN,Prog Related,Israel | |
| KEVI EIER,Crossover Prog,United States | |
| GEINOH YAMASHIROGUMI,RIO/Avant-Prog,Japan | |
| GEKKO PROJEKT,Crossover Prog,United States | |
| GEMINI REVOLUTION,Progressive Electronic,United States | |
| GENCO PURO & CO.,Rock Progressivo Italiano,Italy | |
| ROBER ENCO,Jazz Rock/Fusion,Italy | |
| GENERATION OF VIPERS,Experimental/Post Metal,United States | |
| TH ENERATION,Rock Progressivo Italiano,Italy | |
| GENEROUS MEN,Heavy Prog,Sweden | |
| GENESIS,Symphonic Prog,United Kingdom | |
| GENESIS DE COLOMBIA,Prog Folk,Colombia | |
| GENETICS / EX DIANETICS,Progressive Metal,Australia | |
| GENFUOCO,Rock Progressivo Italiano,Italy | |
| GENGHIS TRON,Experimental/Post Metal,United States | |
| GENIE CRIES,Neo-Prog,United Kingdom | |
| GENIUS,Progressive Metal,Italy | |
| GENRE,Jazz Rock/Fusion,United States | |
| GENS DE LA LUNE,Symphonic Prog,France | |
| GENSHI-KYODOTAI (PRIMITIVE COMMUNITY),Indo-Prog/Raga Rock,Japan | |
| GI ENTILE,Crossover Prog,Italy | |
| GENTLE GIANT,Eclectic Prog,United Kingdom | |
| GENTLE KNIFE,Crossover Prog,Norway | |
| TH ENTLE SOUL,Prog Folk,United States | |
| TH ENTLE STORM,Crossover Prog,Netherlands | |
| GENTLEMEN WITHOUT WEAPONS,Crossover Prog,United Kingdom | |
| GEORGE DORN SCREAMS,Post Rock/Math rock,Poland | |
| GEPETTO,Neo-Prog,France | |
| GEPH,Eclectic Prog,United States | |
| GEPPETTO'S RETRIBUTION,Crossover Prog,United States | |
| GERALD,Eclectic Prog,France | |
| GERALD PETER PROJECT,Symphonic Prog,Austria | |
| GERARD,Neo-Prog,Japan | |
| GERMAN OAK,Krautrock,Germany | |
| GERMINALE,Rock Progressivo Italiano,Italy | |
| GERYON,Tech/Extreme Prog Metal,United States | |
| GESTALT,Eclectic Prog,Japan | |
| GESTALT ET JIVE,RIO/Avant-Prog,Multi-National | |
| JAN ETTER PREMONITION,Eclectic Prog,United States | |
| GRAHA ETTY,Progressive Electronic,United Kingdom | |
| GEVENDE,Eclectic Prog,Turkey | |
| GEYSIR,Eclectic Prog,Germany | |
| TH HAITANELLIS-TASSI PROJECT,Crossover Prog,France | |
| GHIRIBIZZI,Neo-Prog,Belgium | |
| GHOST,Psychedelic/Space Rock,Japan | |
| GHOST CIRCUS,Crossover Prog,Multi-National | |
| GHOST COMMUNITY,Crossover Prog,United Kingdom | |
| GHOST IN MIRRORS,Heavy Prog,United Kingdom | |
| GHOST MEDICINE,Heavy Prog,United States | |
| GHOST OF THE MACHINE,Neo-Prog,United Kingdom | |
| GHOST RHYTHMS,Jazz Rock/Fusion,France | |
| GHOST TOAST,Heavy Prog,Hungary | |
| TH HOST,Prog Folk,United Kingdom | |
| GHOSTBOUND,Experimental/Post Metal,United States | |
| GHOSTS AND VODKA,Post Rock/Math rock,United States | |
| GHOSTS OF JUPITER,Psychedelic/Space Rock,United States | |
| TH HOULIES,Canterbury Scene,United Kingdom | |
| GHQ,Indo-Prog/Raga Rock,United States | |
| FRANCO MARI IANNINI,Rock Progressivo Italiano,Italy | |
| GIANNOTTI,Crossover Prog,United States | |
| GIANT BRAIN,Krautrock,United States | |
| GIANT HEDGEHOG,RIO/Avant-Prog,Germany | |
| TH IANT HOGWEED ORCHESTRA,Psychedelic/Space Rock,Finland | |
| GIANT SKY,Crossover Prog,Norway | |
| GIANT SQUID,Experimental/Post Metal,United States | |
| GIANT STEP,Heavy Prog,Indonesia | |
| GIANT THE VINE,Crossover Prog,Italy | |
| GIANTS,Post Rock/Math rock,United States | |
| GIARDINI D'AUTUNNO,Rock Progressivo Italiano,Italy | |
| GIARDINI DI MIRO,Post Rock/Math rock,Italy | |
| I IARDINO DEI VIZI CONTINUI,Neo-Prog,Italy | |
| I IARDINO ONIRICO,Crossover Prog,Italy | |
| SACH IBSON,Progressive Electronic,United Kingdom | |
| GIDEON,Crossover Prog,Canada | |
| GIDEONS MOB,Eclectic Prog,United States | |
| KRI IETKOWSKI,Eclectic Prog,Poland | |
| GIFT,Krautrock,Germany | |
| TH IFT,Symphonic Prog,United Kingdom | |
| GIFTS FROM ENOLA,Post Rock/Math rock,United States | |
| GIGAN,Tech/Extreme Prog Metal,United States | |
| IGANTI,Rock Progressivo Italiano,Italy | |
| GIGANTIC BRAIN,Experimental/Post Metal,United States | |
| GIGI PASCAL E LA POP COMPAGNIA MECCANICA,Rock Progressivo Italiano,Italy | |
| GILA,Krautrock,Germany | |
| BRUC ILBERT,Progressive Electronic,United Kingdom | |
| KEVI ILBERT,Crossover Prog,United States | |
| KRISTOFFE ILDENLÖW,Crossover Prog,Sweden | |
| GILES GILES & FRIPP,Proto-Prog,United Kingdom | |
| MICHAE ILES MAD BAND,RIO/Avant-Prog,United Kingdom | |
| MICHAE ILES,Canterbury Scene,United Kingdom | |
| GILGAMESH,Canterbury Scene,United Kingdom | |
| IA ILLAN BAND,Jazz Rock/Fusion,United Kingdom | |
| ERI ILLETTE,Progressive Metal,United States | |
| DAVI ILMOUR,Prog Related,United Kingdom | |
| JI ILMOUR,Neo-Prog,Canada | |
| GORDO ILTRAP,Prog Related,United Kingdom | |
| GINGA RALE BAND,Jazz Rock/Fusion,Austria | |
| REUBE INGRICH,Jazz Rock/Fusion,United States | |
| GINTONIC,Crossover Prog,Spain | |
| GIRAFFE,Crossover Prog,United States | |
| GIRAFFES? GIRAFFES!,Post Rock/Math rock,United States | |
| GIRE,Experimental/Post Metal,Hungary | |
| I IRO STRANO,Rock Progressivo Italiano,Italy | |
| GIRÓN,Progressive Electronic,Spain | |
| GIS MAJ ES,Jazz Rock/Fusion,Serbia | |
| GIZMACHI,Tech/Extreme Prog Metal,United States | |
| GIZMO,Crossover Prog,United Kingdom | |
| GJALLARHORN,Prog Folk,Finland | |
| GLACIER,Neo-Prog,United Kingdom | |
| GLADIATOR,Tech/Extreme Prog Metal,United States | |
| GLARESHIFT,Heavy Prog,Italy | |
| GLASFROSCH,Crossover Prog,Australia | |
| GLASGOW COMA SCALE,Post Rock/Math rock,Germany | |
| GLASS,Symphonic Prog,United States | |
| GLASS AMERICA,Post Rock/Math rock,United States | |
| GLASS HAMMER,Symphonic Prog,United States | |
| GLASS HARP,Crossover Prog,United States | |
| GLASS KITES,Crossover Prog,Canada | |
| GLASS MIND,Progressive Metal,Mexico | |
| GLASS OCEAN,Crossover Prog,Australia | |
| GLASSWING,Heavy Prog,United States | |
| GLASSWORK,Heavy Prog,Spain | |
| GLASTON,Post Rock/Math rock,Switzerland | |
| GLASWALD,Psychedelic/Space Rock,Germany | |
| GLAZ,Prog Folk,France | |
| GLAZZ,Eclectic Prog,Spain | |
| GLEEMEN,Rock Progressivo Italiano,Italy | |
| GLENCOE,Crossover Prog,United Kingdom | |
| GLETSCHER,Experimental/Post Metal,Switzerland | |
| YIANNI LEZOS,Crossover Prog,Greece | |
| GLINTSHAKE,RIO/Avant-Prog,Russia | |
| GLISTENING LEOTARD,Heavy Prog,Germany | |
| GLOBALYS,Eclectic Prog,Belgium | |
| GLORIE,Crossover Prog,United States | |
| GLORIOUS WOLF,Crossover Prog,Netherlands | |
| GLOSSOLALIA,Psychedelic/Space Rock,Multi-National | |
| ROGE LOVER,Prog Related,United Kingdom | |
| TH LUTTON,Post Rock/Math rock,Norway | |
| GNAW THEIR TONGUES,Experimental/Post Metal,Netherlands | |
| GNIDROLOG,Eclectic Prog,United Kingdom | |
| GNOHGNUHGNLUS / EX DOLULUS,Progressive Electronic,Switzerland | |
| GNOMONAUT,Heavy Prog,United States | |
| GO RUN DONKEY HOT!,Post Rock/Math rock,Croatia | |
| VICTO O,Crossover Prog,Ukraine | |
| GO-NEKO!,Psychedelic/Space Rock,Argentina | |
| GOAD,Eclectic Prog,Italy | |
| GOAT,Psychedelic/Space Rock,Sweden | |
| GOBLIN,Rock Progressivo Italiano,Italy | |
| GOBLIN REBIRTH,Rock Progressivo Italiano,Italy | |
| GOD,Progressive Metal,Israel | |
| GOD BLESS,Prog Related,Indonesia | |
| GOD IS AN ASTRONAUT,Post Rock/Math rock,Ireland | |
| GOD OF SHAMISEN,RIO/Avant-Prog,United States | |
| MOOSEHEAR ODBLESS THEE,Heavy Prog,United States | |
| CHRISTOPH ODIN,Jazz Rock/Fusion,France | |
| GODLEY & CREME,Prog Related,United Kingdom | |
| TH ODS,Proto-Prog,United Kingdom | |
| GODSEND,Experimental/Post Metal,Norway | |
| GODSPEED YOU! BLACK EMPEROR,Post Rock/Math rock,Canada | |
| GODSTICKS,Crossover Prog,United Kingdom | |
| GODZIK PINK,RIO/Avant-Prog,United States | |
| GODZILLA IN THE KITCHEN,Heavy Prog,Germany | |
| GOJIRA,Tech/Extreme Prog Metal,France | |
| GOLD,Jazz Rock/Fusion,United States | |
| GOLDBUG,RIO/Avant-Prog,United States | |
| GOLDEN AVANT-GARDE,RIO/Avant-Prog,Japan | |
| GOLDEN AVATAR,Jazz Rock/Fusion,United States | |
| GOLDEN CAVES,Crossover Prog,Netherlands | |
| GOLDEN EARRING,Prog Related,Netherlands | |
| GOLDOOLINS,Prog Folk,Israel | |
| GOLEM,Krautrock,Germany | |
| GOLGATHA,Progressive Metal,United States | |
| GOLIATH,Crossover Prog,United Kingdom | |
| SERGIU OLOWIN,Krautrock,Switzerland | |
| FARZA OLPAYEGANI,Progressive Metal,Iran | |
| GOMA,Eclectic Prog,Spain | |
| GOMORRHA,Heavy Prog,Germany | |
| GONDHAWA,Psychedelic/Space Rock,France | |
| GONE,Progressive Metal,Germany | |
| GONG,Canterbury Scene,Multi-National | |
| L ONG DU BALAYEUR,Crossover Prog,France | |
| GONGZILLA,Jazz Rock/Fusion,Multi-National | |
| GONIN-ISH,Experimental/Post Metal,Japan | |
| GOOD AUTHORITY,Neo-Prog,Netherlands | |
| GOOD GOD,Jazz Rock/Fusion,United States | |
| GOOD NIGHTOWL,Eclectic Prog,United States | |
| GOOD TIGER,Progressive Metal,United Kingdom | |
| JERR OODMAN,Jazz Rock/Fusion,United States | |
| GOODTHUNDER,Heavy Prog,United States | |
| GOONIES NEVER SAY DIE,Post Rock/Math rock,United Kingdom | |
| ALAI ORAGUER,Psychedelic/Space Rock,France | |
| ANDRE ORCZYCA,Neo-Prog,United States | |
| GORDIAN KNOT,Eclectic Prog,United States | |
| TH ORDON GRDINA TRIO,RIO/Avant-Prog,Canada | |
| IA ORDON,Neo-Prog,United Kingdom | |
| GORGE TRIO,RIO/Avant-Prog,United States | |
| GORGO,Prog Folk,Ukraine | |
| GORGUTS,Tech/Extreme Prog Metal,Canada | |
| GORO WINS,Jazz Rock/Fusion,Argentina | |
| GOROD,Tech/Extreme Prog Metal,France | |
| SA ORSKI,Progressive Metal,United States | |
| GOSIA,Heavy Prog,United Kingdom | |
| GOSPEL,Experimental/Post Metal,United States | |
| GÖSTA BERLINGS SAGA,Eclectic Prog,Sweden | |
| GOTHIC LUNCH,Crossover Prog,Italy | |
| GOTHIK SERPENT,Crossover Prog,Singapore | |
| GŇTIC,Symphonic Prog,Spain | |
| TADASH OTO,Progressive Metal,Japan | |
| MANUE ÖTTSCHING,Krautrock,Germany | |
| JEAN-PHILIPP OUDE,Eclectic Prog,France | |
| TH OURISHANKAR,Eclectic Prog,Russia | |
| GUTHRI OVAN,Jazz Rock/Fusion,United Kingdom | |
| GOVEA,Symphonic Prog,Mexico | |
| GOWEN - MILLER - SINCLAIR - TOMKINS,Canterbury Scene,United Kingdom | |
| GOZZOZO,Jazz Rock/Fusion,France | |
| GPS,Neo-Prog,United States | |
| GRAAL,Prog Folk,France | |
| GRAAL (UKR),Experimental/Post Metal,Ukraine | |
| GRACE,Neo-Prog,United Kingdom | |
| GRACE AND FIRE,Progressive Metal,United Kingdom | |
| CAR RACE,Psychedelic/Space Rock,United Kingdom | |
| GRACED LIGHTNING,Eclectic Prog,United States | |
| GRACIOUS,Symphonic Prog,United Kingdom | |
| GRAIL,Psychedelic/Space Rock,United Kingdom | |
| GRAILS,Psychedelic/Space Rock,United States | |
| CRIST RAM,Progressive Metal,Romania | |
| GRAMIGNA,RIO/Avant-Prog,Italy | |
| GRAMONAUTUS,Crossover Prog,Argentina | |
| SÉBASTIE RAMOND,Eclectic Prog,France | |
| L RAN PERDIDA DE ENERGIA,Post Rock/Math rock,Argentina | |
| GRAN TORINO,Heavy Prog,Italy | |
| GRAN TURISMO VELOCE,Rock Progressivo Italiano,Italy | |
| GRANADA,Symphonic Prog,Spain | |
| PHILIPP RANCHER,Crossover Prog,France | |
| TH RAND ASTORIA,Eclectic Prog,Russia | |
| L RAND BATON,Neo-Prog,Guadeloupe | |
| GRAND GENERAL,Jazz Rock/Fusion,Norway | |
| L RAND GUIGNOL,Tech/Extreme Prog Metal,Luxembourg | |
| GRAND MASTER,Progressive Metal,Canada | |
| L RAND NEBULEUX,Jazz Rock/Fusion,France | |
| L RAND SBAM,RIO/Avant-Prog,France | |
| TH RAND SILENT SYSTEM,Crossover Prog,Australia | |
| GRAND STAND,Symphonic Prog,Sweden | |
| GRAND TOUR,Neo-Prog,United Kingdom | |
| GRAND ULENA,RIO/Avant-Prog,United States | |
| GRANDBELL,Symphonic Prog,Brazil | |
| GRANDE DUKE,Post Rock/Math rock,United Kingdom | |
| L RANDE FORMATION,RIO/Avant-Prog,Belgium | |
| GRANDVAL,Crossover Prog,France | |
| PATRIC RANT,Eclectic Prog,United States | |
| LE RANULES,RIO/Avant-Prog,Canada | |
| TH RASSHOPPER LIES HEAVY,Experimental/Post Metal,United States | |
| MATHIA RASSOW,Progressive Electronic,Germany | |
| GRATTO,Eclectic Prog,United States | |
| GRAUGLANZ,Progressive Electronic,Germany | |
| GRAVE,Krautrock,Germany | |
| CAMERO RAVES,Jazz Rock/Fusion,United States | |
| GRAVESTONE,Krautrock,Germany | |
| GRAVITON,Experimental/Post Metal,United States | |
| GRAVITSAPA,RIO/Avant-Prog,Ukraine | |
| GRAVITY,Progressive Metal,United States | |
| GRAVITY TREE,Crossover Prog,United States | |
| GRAVY TRAIN,Heavy Prog,United Kingdom | |
| GRAYCEON,Experimental/Post Metal,United States | |
| TH REAT DISCORD,Progressive Metal,Sweden | |
| TH REAT GAMBLE,Progressive Metal,United States | |
| TH REAT LABYRINTH PROJECT,Heavy Prog,United States | |
| TH REAT OLD ONES,Experimental/Post Metal,France | |
| TH REAT TYRANT,RIO/Avant-Prog,United States | |
| GREAT WIDE NOTHING,Neo-Prog,United States | |
| TH REATEST SHOW ON EARTH,Eclectic Prog,United Kingdom | |
| JOH REAVES,Canterbury Scene,United Kingdom | |
| JACQUES L RECA,Jazz Rock/Fusion,France | |
| MARE RECHUTA,Eclectic Prog,Poland | |
| GREEN,Crossover Prog,Italy | |
| GREEN ASPHALT,Eclectic Prog,Sweden | |
| GREEN CARNATION,Experimental/Post Metal,Norway | |
| TH REEN CHILDREN,Prog Folk,Italy | |
| GREEN DESERT TREE,Neo-Prog,Germany | |
| GREEN DIESEL,Prog Folk,United Kingdom | |
| GREEN MILK FROM THE PLANET ORANGE,Psychedelic/Space Rock,Japan | |
| GREEN SPACE,Neo-Prog,France | |
| TH REEN VIOLINIST,Crossover Prog,Belgium | |
| GREEN WAVE,Krautrock,Germany | |
| CLA REEN'S POLYSORBATE MASQUERADE BAND,Symphonic Prog,United States | |
| JEF REEN,Neo-Prog,Ireland | |
| MAR REEN,Crossover Prog,United Kingdom | |
| GREENSLADE,Symphonic Prog,United Kingdom | |
| DAV REENSLADE,Crossover Prog,United Kingdom | |
| GREENSLEEVES,Progressive Metal,Brazil | |
| GREENWALL,Rock Progressivo Italiano,Italy | |
| NICHOLA REENWOOD,Canterbury Scene,United Kingdom | |
| GREGOR CÜRTEN & ANSELM ROGMANS,Progressive Electronic,Germany | |
| GREGOR SAMSA,Post Rock/Math rock,United States | |
| RAND REIF,Progressive Electronic,United States | |
| GRENDEL,Neo-Prog,Poland | |
| GREY EYE GLANCES,Crossover Prog,United States | |
| GREY LADY DOWN,Neo-Prog,United Kingdom | |
| GREY LOTUS,Crossover Prog,Netherlands | |
| GREY MATTER,Progressive Metal,Canada | |
| GREY MOUSE,Psychedelic/Space Rock,Russia | |
| GREYFIELD,Symphonic Prog,Spain | |
| GREYHAVEN,Heavy Prog,United States | |
| GREYLEVEL,Psychedelic/Space Rock,Canada | |
| GREYLYNG,Eclectic Prog,United States | |
| GREYSCALE,Psychedelic/Space Rock,Australia | |
| GRICE,Crossover Prog,United Kingdom | |
| CHARLI RIFFITHS,Progressive Metal,United Kingdom | |
| GRILL,Crossover Prog,Australia | |
| GRIMACE FEDERATION,Jazz Rock/Fusion,United States | |
| GRIMALKIN,Rock Progressivo Italiano,Italy | |
| GRIME,Crossover Prog,France | |
| GRIMÉNY,Post Rock/Math rock,Germany | |
| GRIMLORD,Progressive Metal,Poland | |
| LARKI RIMM,Prog Folk,United States | |
| GRINGO,Canterbury Scene,United Kingdom | |
| GRIOT,Eclectic Prog,Portugal | |
| RAGNA RIPPE,Progressive Electronic,Sweden | |
| GRIS,Tech/Extreme Prog Metal,Canada | |
| GRITS,Jazz Rock/Fusion,United States | |
| GROBSCHNITT,Symphonic Prog,Germany | |
| MUC ROH,Jazz Rock/Fusion,Germany | |
| GROMBIRA,Psychedelic/Space Rock,Germany | |
| GROOP,Psychedelic/Space Rock,United States | |
| GROOVE THERAPIST,Progressive Metal,Greece | |
| GROOVECTOR,Eclectic Prog,Finland | |
| HARAL ROSSKOPF,Progressive Electronic,Germany | |
| GROTESK,Jazz Rock/Fusion,Germany | |
| GROUND ZERO,RIO/Avant-Prog,Japan | |
| GROUNDHOGS,Prog Related,United Kingdom | |
| GROUP 1850,Psychedelic/Space Rock,Netherlands | |
| GROUP 309,Crossover Prog,Russia | |
| GROUP 87,Jazz Rock/Fusion,United States | |
| TH ROUP,Jazz Rock/Fusion,Finland | |
| GROVJOBB,Prog Folk,Sweden | |
| GROWING DREAM,Prog Folk,Canada | |
| GROWING SEEDS,Psychedelic/Space Rock,Germany | |
| GROWTH,Tech/Extreme Prog Metal,Australia | |
| GRU,Progressive Metal,Poland | |
| GRUMBLEWOOD,Prog Folk,New Zealand | |
| GRUMBLING FUR,Krautrock,United Kingdom | |
| SVE RÜNBERG,Progressive Electronic,Estonia | |
| GEORGE RÜNBLATT,Progressive Electronic,France | |
| GRUPPO 2001,Rock Progressivo Italiano,Italy | |
| GRUPPO AUTONOMO SUONATORI,Rock Progressivo Italiano,Italy | |
| GRUPPO D'ALTERNATIVA ,RIO/Avant-Prog,Italy | |
| GRYDGAARD,Neo-Prog,Denmark | |
| GRYPHON,Prog Folk,United Kingdom | |
| GTR,Prog Related,United Kingdom | |
| GUADALQUIVIR,Jazz Rock/Fusion,Spain | |
| GUALBERTO,Prog Folk,Spain | |
| GUAPO,RIO/Avant-Prog,United Kingdom | |
| GUARDIAN ALIEN,RIO/Avant-Prog,United States | |
| GUARDIAN ANGEL,Progressive Metal,Greece | |
| TH UARDIAN'S OFFICE,Eclectic Prog,Norway | |
| GUDDAL (YNGVE) & MATTE (ROGER T.),Prog Related,Norway | |
| GUERCIA,Rock Progressivo Italiano,Italy | |
| EMILIO DE UERCIO,Prog Folk,Argentina | |
| GUERILLA TOSS,RIO/Avant-Prog,United States | |
| JEA UÉRIN,Progressive Electronic,France | |
| SHAU UERIN,Symphonic Prog,United States | |
| GUERNICA,Eclectic Prog,Japan | |
| L UERRA DELLE FORMICHE,Crossover Prog,Italy | |
| PHILIPP UERRE,Progressive Electronic,France | |
| GUILD NAVIGATORS,Psychedelic/Space Rock,United States | |
| GUILDENSTERN,Symphonic Prog,Germany | |
| TH UILDMASTER,Prog Folk,Multi-National | |
| GUILLOTINE,Tech/Extreme Prog Metal,India | |
| GUILT MACHINE,Progressive Metal,Netherlands | |
| I UINNESS,Crossover Prog,Canada | |
| CARLO UIRAO,Progressive Electronic,Spain | |
| GUITAR GARDEN,Crossover Prog,United States | |
| WLODZIMIER ULGOWSKI,Jazz Rock/Fusion,Poland | |
| TH UN,Proto-Prog,United Kingdom | |
| GUNESH ENSEMBLE,Jazz Rock/Fusion,Turkmenistan | |
| GUNGFLY,Crossover Prog,Sweden | |
| GUNJOGACRAYON,RIO/Avant-Prog,Japan | |
| TRE UNN,Eclectic Prog,United States | |
| GUNS AND BUTTER,Eclectic Prog,United States | |
| GUPPY FISH,Heavy Prog,Greece | |
| GURANFOE,Eclectic Prog,United Kingdom | |
| GURNEMANZ,Prog Folk,Germany | |
| GURTH,Jazz Rock/Fusion,Spain | |
| GURU & ZERO,Psychedelic/Space Rock,United Kingdom | |
| GURU GURU,Krautrock,Germany | |
| GURUH GIPSY,Eclectic Prog,Indonesia | |
| GURUMANIAX,Krautrock,Germany | |
| JUKK USTAVSON,Jazz Rock/Fusion,Finland | |
| GUTBUCKET,RIO/Avant-Prog,United States | |
| GUTURA,RIO/Avant-Prog,France | |
| GUZZLEMUG,Eclectic Prog,United States | |
| GWERZ,Prog Folk,France | |
| GWYNBLEIDD,Tech/Extreme Prog Metal,United States | |
| GX,Progressive Metal,Peru | |
| GYGAFO,Prog Related,United Kingdom | |
| GYPSY,Eclectic Prog,United States | |