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Foul Domain

A fan-built audio analysis index. Not affiliated with Phish. All audience recordings comply with Phish's official taping policy.

Catalog scope

37,025

Tracks

2,012

Shows

1983–2026

Years

4,759

Hours of audio

Score formula

v3.3· Recalibrated 2026-05-13

Data·Phish.net·Phish.in·librosa v0.10.2

Project

About Contact Methodology Privacy Terms

FD·v3.3·Build 2026-05-14·© MMXXVI

Status · all systems nominal

Foul Domain

v3.3 · MMXXVI

Phish concert analytics, setlist data, and audio analysis across 40+ years of touring. Fan-built & not affiliated with Phish; audience recordings follow the official taping policy.

Catalog scopeUpdated live

37,025Tracks

2,012Shows

1983–26Years

4,759Hours · audio

Methodology→About→Contact→Privacy→Terms→

Data·Phish.net·Phish.in·librosa v0.10.2

▣All systems nominalFD-V7·© MMXXVI

I Am Hydrogen · October 18, 1991 at Great American Music Hall | Audio Analysis | Foul Domain

← BACK·TRACKS·I Am Hydrogen

LIVE · 2:45

Phish track · Set 2 · #14

I Am Hydrogen

A 3-minute version from Great American Music Hall in San Francisco, CA on 1991-10-18.

DATE · 1991-10-18·SHOW · Great American Music Hall·LENGTH · 2:45

51TRACK

OF 317 VERSIONS

#102

ALL-TIME · #12,892 · 64th percentile

TRACK · SCORED v3.2← LEADERBOARD

I Am Hydrogen

1991-10-18·Great American Music Hall·San Francisco, CA

1991 FALL TOUR·Set 2·POS 14 / 142:45

51SCORE

COMPOSITE · RANK AMONG VERSIONS

v102 of 317

#102 OF 317 · I AM HYDROGEN CATALOG

0:002:45

DEEP ANALYSIS · LIBROSA v3.24 OF 24

PEAK AT1:49of 2:45

DYN dB10.9tight

ONSET/s4.6busy

BPM98era 1.0

How this version scoredMETHODOLOGY →

10 COMPONENTS · ONE COMPOSITEv3.3

0%306090100%

Popularity11%

0

Consensus10%

0

Jam Chart12%

0

Recognition12%

0

Energy12%

72

Groove12%

74

Harmonic9%

5

Duration9%

0

Volatility8%

71

Review5%

50

WEIGHTED · 100/100OPEN METHODOLOGY →

From this showSet 2 · 12 SONGS

1991-10-18 · Great American Music Hall

San Francisco, CA · 1991 FALL TOUR · SHOW SCORE 31

31SHOW

Set 2

II-1Brother7:19 II-2Uncle Pen4:06 II-3Guelah Papyrus6:48 II-4Dinner and a Movie3:30 II-5Mike's Song6:49 II-6I Am HydrogenYOU ARE HERE2:45 II-7Weekapaug Groove6:16 II-8I Didn't Know3:22 II-9Fee5:21 II-10Split Open and Melt7:35 II-11My Sweet One2:22 II-12Cavern4:47 OPEN FULL SHOW PAGE→

Other versions317 OF · SONG PAGE →

SAME SONG · RANKEDSWIPE →

02.15.93Memorial Hall, University of North CarolinaChapel Hill · NC84 09.16.99Shoreline AmphitheatreMountain View · CA83 11.27.98Worcester Centrum CentreWorcester · MA79 02.18.93Electric BallroomKnoxville · TN79 02.20.93Roxy TheatreAtlanta · GA77

From this show3 TOP CUTS

SHOW STAND-OUTS · 1991-10-18SWIPE →

2·9Brother7:1990 1·1Runaway Jim7:2879 2·11Guelah Papyrus6:4867

SONG →/songs/i-am-hydrogen SHOW →/shows/1991-10-18-great-american-music-hall-san-francisco-ca METHOD →/methodology

FOUL DOMAIN/tracks/8872 · v3.2

FOUL DOMAIN · INDEPENDENT · NOT AFFILIATED WITH PHISH

DISPLAY· TRACK SPECTRUMINPUT · TRACK_FEATURES.WAVEFORM

0:000:411:222:032:45

JAM IN · —PEAK · 1:50SAMPLE RATE 44.1 kHzSOURCE PHISH.IN

DEEP AUDIO ANALYSIS· LIBROSA CURVESENERGY · TEMPO · SPECTRUM

Radar · component scores0–100 normalized

Energy-10.4 dB

Loudness1.0 dB

Dynamic range10.9 dB

Rhythmic density4.63/sec

Brightness1591 Hz

Flatness0.003

Harmonic variance0.063

Feature curves · over time0 → 2:45

EnergyLoudness envelope, dB

0:001:222:45

Perceptual loudnessShort-term LUFS, psychoacoustically weighted

0:001:222:45

BrightnessSpectral centroid — where the weight of the sound sits

0:001:222:45

Rhythmic densityOnsets per second, log-scaled

0:001:222:45

Tempo96–152 bpm · avg 115

0:001:222:45

Spectral flatnessTonal → noisy. Low = pitched; high = wash

0:001:222:45

READOUT· COMPOSITE SCORE · COMPONENT BREAKDOWN64TH PERCENTILE

Popularity11%0

Consensus10%0

Jam Chart12%0

Recognition12%0

Energy12%72

Groove12%74

Harmonic9%5

Duration9%0

Volatility8%71

Review5%50

SCORE FORMULA · v3.3 · RECALIBRATED 2026-05-13OPEN METHODOLOGY →

INSTRUMENTATION· LIBROSA · v0.10.25 / 6 CHANNELS LIVE

LENGTH2:45standard

BPM98average

DYN dB10.9mid range

RHYTHM4.6/sbusy onset

PEAK1:50at 67%

JAM IN—auto only

CONTEXT· SETLIST · SHOW

SETLISTSet 2

II-1Brother7:19 II-2Uncle Pen4:06 II-3Guelah Papyrus6:48 II-4Dinner and a Movie3:30 II-5Mike's Song6:49

II-6I Am Hydrogen2:45

II-7Weekapaug Groove6:16 II-8I Didn't Know3:22 II-9Fee5:21 II-10Split Open and Melt7:35 II-11My Sweet One2:22 II-12Cavern4:47

12 TRACKSVIEW SHOW →

SHOWSHOW SCORE 31

Great American Music Hall · San Francisco, CA1991 Fall Tour · RANKED #12892 / 36131

TOP TRACKS THIS SHOW

BrotherSET 2 #9 · 7:19

Runaway JimSET 1 #1 · 7:28

Guelah PapyrusSET 2 #11 · 6:48

1991-10-18VIEW SHOW →

RELATED· OTHER I Am Hydrogen VERSIONS317 TOTAL

#SCOREVENUEWAVEFORMDATELENGTH

#0284Memorial Hall, University of North CarolinaChapel Hill, NC

1993-02-153:02 #0383Shoreline AmphitheatreMountain View, CA

1999-09-164:24 #0479Worcester Centrum CentreWorcester, MA

1998-11-274:14 #0579Electric BallroomKnoxville, TN

1993-02-184:22 #0677Roxy TheatreAtlanta, GA

Sign in to suggest correctionsTRACK ID · 8872· DATA VERSION v3.3