Basilica of the Immaculate Conception, 2020-09-20

A 61-second organ passage from the National Shrine's September 20, 2020 service recording. The performer has not yet been identified. Follow the estimated pedal, upper pitches and tonal direction as you listen. The machine readings are provisional.

Performer not established · provisional · 61.0s excerpt

Source credit: National Shrine

Original recording · source interval 19.3–80.3s.

Machine listening summary

Analysis limitations

Analysis settings

Visual evidence

The harmonic layers
The waveform, pitch-class maps and estimated bass show how the layers change through the excerpt.
Sound across the registers
Brighter bands show stronger frequencies. Organ overtones and reverberation also appear here; a bright band is not necessarily a separate played note.

Candidate harmonic timeline

All times start at the beginning of the excerpt. Fits describe relative agreement, not confidence probabilities. These are competing machine readings, not a transcription of notes or inversions. Reverberation and overtones can shift the estimates.

Start (s)End (s)Pedal / bassUpper pitchesCandidate chords (relative fit)Candidate tonal context
0.00.5A#1C Eb F Gb G BbEbm11/Bb (0.85) | Fm11/Bb (0.84) | Cm11(no9)/Bb (0.84)G minor
0.51.0A#1C Eb F Gb G BbCm11(no9)/Bb (0.88) | Eb6/9 over Bb pedal (0.88) | Cm11/Bb (0.87)G minor
1.01.5A#1C D Eb F G ACm11/Bb (0.88) | Gm11/Bb (0.85) | Gm11(no9)/Bb (0.84)G minor
1.52.0A2C D G AD7sus4/A (1.00) | Dsus4/A (0.94) | Gsus2/A (0.94)G minor
2.02.5G2C D G AD7sus4/G (0.99) | Dsus4/G (0.94) | Gsus2 (0.94)G minor
2.53.0G2C D G AD7sus4/G (0.99) | Dsus4/G (0.93) | Gsus2 (0.93)G minor
3.03.5G2C D G AD7sus4/G (0.99) | Dsus4/G (0.93) | Gsus2 (0.93)G minor
3.54.0G2C D G AD7sus4/G (0.98) | Dsus4/G (0.93) | Gsus2 (0.93)G minor
4.04.5G2C D G AD7sus4/G (0.97) | Dsus4/G (0.93) | Gsus2 (0.93)G minor
4.55.0G2C D G AD7sus4/G (0.97) | Dsus4/G (0.94) | Gsus2 (0.94)G minor
5.05.5G2C D G AD7sus4/G (0.96) | Dsus4/G (0.94) | Gsus2 (0.94)G minor
5.56.0G2C D F G AD7sus4/G (0.96) | Dsus4/G (0.95) | Gsus2 (0.95)G minor
6.06.5G2C D F G ADsus4/G (0.94) | Gsus2 (0.94) | D7sus4/G (0.93)G minor
6.57.0D#1C D F G ADsus4 over Eb pedal (0.92) | Gsus2 over Eb pedal (0.92) | Dm11(no9) over Eb pedal (0.91)G minor
7.07.5D#1C D Eb F G ADm11(no9) over Eb pedal (0.92) | F6/9 over Eb pedal (0.92) | Dsus4 over Eb pedal (0.90)G minor
7.58.0D#1Db D Eb F G ADsus4 over Eb pedal (0.88) | Gsus2 over Eb pedal (0.88) | Gm11 over Eb pedal (0.82)G minor
8.08.5D#1Db D Eb F G ADsus4 over Eb pedal (0.85) | Gsus2 over Eb pedal (0.85) | Ebmaj7 (0.80)G minor
8.59.0D#1Db D Eb G A BEb7 (0.82) | Ebaug (0.79) | Gaug/Eb (0.79)G minor
9.09.5D#1Db Eb Gb G Bb BBadd9/Eb (0.95) | B/Eb (0.88) | Bmaj7/Eb (0.88)G minor
9.510.0D#1Db Eb Gb Bb BBadd9/Eb (0.97) | B/Eb (0.91) | Bmaj7/Eb (0.91)G minor
10.010.5F#2Db Eb Gb Bb BBadd9/Gb (0.97) | B/Gb (0.92) | Bmaj7/Gb (0.91)G minor
10.511.0F#2Db Eb Gb Bb BBadd9/Gb (0.98) | B/Gb (0.94) | Bmaj7/Gb (0.91)G minor
11.011.5F#2Db Eb Gb Bb BBadd9/Gb (0.98) | Gbsus4 (0.91) | Bsus2/Gb (0.91)G minor
11.512.0F#2Db Eb Gb Bb BBadd9/Gb (0.97) | Gbsus4 (0.93) | Bsus2/Gb (0.93)G minor
12.012.5F#2Db Eb Gb Bb BBadd9/Gb (0.96) | Gbsus4 (0.92) | Bsus2/Gb (0.92)G minor
12.513.0B1Db Eb Gb Bb BBadd9 (0.95) | Gbsus4/B (0.92) | Bsus2 (0.92)G minor
13.013.5B1Db Eb Gb Ab Bb BAbm11/B (0.96) | Abm11(no9)/B (0.92) | B6/9 (0.92)G minor
13.514.0B1Db Eb Gb Ab Bb BAbm11/B (0.97) | Abm11(no9)/B (0.90) | B6/9 (0.90)G minor
14.014.5B1Db Eb F Ab Bb BAbm11/B (0.94) | Ebm11 over B pedal (0.88) | Abm11(no9)/B (0.87)G minor
14.515.0B1Db Eb F Ab Bb BAbm11/B (0.93) | Db6/9 over B pedal (0.91) | Bbm11(no9) over B pedal (0.91)G minor
15.015.5B1Db Eb F Ab Bb BDb6/9 over B pedal (0.93) | Bbm11(no9) over B pedal (0.93) | Db6 over B pedal (0.89)G minor
15.516.0B1Db Eb F G Ab BbDb6/9 over B pedal (0.91) | Bbm11(no9) over B pedal (0.91) | Dbadd9 over B pedal (0.88)G minor
16.016.5G2Db Eb F G Ab BbDb6/9 over G pedal (0.89) | Bbm11(no9) over G pedal (0.89) | Bbm6/G (0.88)G minor
16.517.0G2Db D Eb F G BbBbm6/G (0.92) | Ebadd9/G (0.87) | Db6/9 over G pedal (0.86)G minor
17.017.5A1C Db F G A BbGm11/A (0.95) | Gm11(no9) over A pedal (0.85) | Bb6/9 over A pedal (0.85)G minor
17.518.0A1C D F G A BbGm11/A (0.98) | Dm11(no9)/A (0.88) | F6/9 over A pedal (0.88)G minor
18.018.5A1C D F G A BbGm11/A (0.98) | Dm11(no9)/A (0.90) | F6/9 over A pedal (0.90)G minor
18.519.0A1C D F G A BbGm11/A (0.98) | Dm11(no9)/A (0.94) | F6/9 over A pedal (0.94)G minor
19.019.5A1C D F G A BbGm11/A (0.98) | Dm11(no9)/A (0.97) | F6/9 over A pedal (0.97)G minor
19.520.0G1C D F G A BbGm11 (0.98) | Dm11(no9)/G (0.95) | F6/9 over G pedal (0.95)G minor
20.020.5G1C D F G A BbGm11 (0.98) | Dm11(no9)/G (0.95) | F6/9 over G pedal (0.95)G minor
20.521.0G1C D F G A BbGm11 (0.97) | Dm11(no9)/G (0.94) | F6/9 over G pedal (0.94)G minor
21.021.5G1C D F G A BbGm11 (0.97) | Dm11(no9)/G (0.92) | F6/9 over G pedal (0.92)G minor
21.522.0G1C D F G A BbGm11 (0.98) | Dm11(no9)/G (0.94) | F6/9 over G pedal (0.94)G minor
22.022.5G1C D F G A BbGm11 (0.99) | Gm11(no9) (0.96) | Bb6/9 over G pedal (0.96)G minor
22.523.0G1C D F G A BbGm11 (0.99) | Gm11(no9) (0.96) | Bb6/9 over G pedal (0.96)G minor
23.023.5G1C D F G A BbGm11 (1.00) | Dm11(no9)/G (0.97) | F6/9 over G pedal (0.97)G minor
23.524.0G1C D F G A BbGm11 (1.00) | Dm11(no9)/G (0.97) | F6/9 over G pedal (0.97)G minor
24.024.5G1C D F G ADm11(no9)/G (0.98) | F6/9 over G pedal (0.98) | Gm11 (0.93)G minor
24.525.0G1C D F G ADm11(no9)/G (0.96) | F6/9 over G pedal (0.96) | G7sus4 (0.93)G minor
25.025.5G1C D F G A BbGm7 (0.93) | Bb6/G (0.93) | Gm11 (0.92)G minor
25.526.0G1C D F G A BbGm7 (0.94) | Bb6/G (0.94) | Gm11 (0.93)G minor
26.026.5G1C D F G A BbGm7 (0.94) | Bb6/G (0.94) | Gm11 (0.93)G minor
26.527.0G1C D F G A BbGm11 (0.94) | Dm11(no9)/G (0.93) | F6/9 over G pedal (0.93)G minor
27.027.5G1C D F G A BbGm11 (0.93) | Dm11(no9)/G (0.93) | F6/9 over G pedal (0.93)G minor
27.528.0G1C D F G A BbGm11 (0.95) | Gm7 (0.93) | Bb6/G (0.93)G minor
28.028.5G1C D F G A BbGm11 (0.96) | Gm11(no9) (0.96) | Bb6/9 over G pedal (0.96)G minor
28.529.0G1C D F G A BbGm11(no9) (0.98) | Bb6/9 over G pedal (0.98) | Gm11 (0.97)G minor
29.029.5G1C D F G A BbGm11(no9) (0.98) | Bb6/9 over G pedal (0.98) | Gm11 (0.97)G minor
29.530.0F1C D F G BbGm11(no9)/F (0.98) | Bb6/9 over F pedal (0.98) | Gm7/F (0.96)G minor
30.030.5F1C D F G A BbGm11(no9)/F (0.98) | Bb6/9 over F pedal (0.98) | Gm7/F (0.96)G minor
30.531.0G2C D F G A BbGm11(no9) (0.98) | Bb6/9 over G pedal (0.98) | Gm11 (0.98)G minor
31.031.5G2C D F G BbGm11(no9) (0.98) | Bb6/9 over G pedal (0.98) | Gm7 (0.95)G minor
31.532.0D2C D F G BbGm11(no9)/D (0.97) | Bb6/9 over D pedal (0.97) | Gm7/D (0.95)G minor
32.032.5G2C D F G BbGm11(no9) (0.95) | Bb6/9 over G pedal (0.95) | Gm7 (0.93)G minor
32.533.0G1C D F G A BbGm11 (0.93) | Gm11(no9) (0.93) | Bb6/9 over G pedal (0.93)G minor
33.033.5G1C D F G A BbGm11 (0.90) | Gm7 (0.90) | Bb6/G (0.90)G minor
33.534.0G1C D F G ACsus2/G (0.91) | Gsus4 (0.91) | G7sus4 (0.91)G minor
34.034.5G1D F G ADsus4/G (0.90) | Gsus2 (0.90) | Dm11(no9)/G (0.85)G minor
34.535.0G1D GG (0.84) | Dsus4/G (0.83) | Gsus2 (0.83)G minor
35.035.5G1D F G A BG (0.92) | Dsus4/G (0.91) | Gsus2 (0.91)G minor
35.536.0G1D F G A BG (0.93) | G7 (0.92) | Gadd9 (0.90)G minor
36.036.5G1D F G A BG7 (0.94) | G (0.93) | Gadd9 (0.90)G minor
36.537.0G1D F G A Bb BGm7 (0.94) | Bb6/G (0.94) | G7 (0.90)G minor
37.037.5G1D F G BbGm7 (0.94) | Bb6/G (0.94) | Gm (0.92)G minor
37.538.0G1D F G BbGm7 (0.93) | Bb6/G (0.93) | Gm (0.93)G minor
38.038.5G1D F G BbGm7 (0.92) | Bb6/G (0.92) | Bb over G pedal (0.91)G minor
38.539.0G1D F G BbGm7 (0.92) | Bb6/G (0.92) | Bb over G pedal (0.92)G minor
39.039.5G1D F G BbGm7 (0.92) | Bb6/G (0.92) | Bb over G pedal (0.92)G minor
39.540.0G1D F G BbGm7 (0.91) | Bb6/G (0.91) | Bb over G pedal (0.91)G minor
40.040.5G1D F G BbGm7 (0.91) | Bb6/G (0.91) | Bb over G pedal (0.91)G minor
40.541.0G1D F G BbGm (0.90) | Gm7 (0.90) | Bb6/G (0.90)G minor
41.041.5G1D G BbGm (0.91) | Gm7 (0.83) | Bb6/G (0.83)G minor
41.542.0G1D G BbGm (0.93) | Gm7 (0.84) | Bb6/G (0.84)G minor
42.042.5G1D G BbGm (0.89) | Gm7 (0.80) | Bb6/G (0.80)G minor
42.543.0G1D G BbGm (0.87) | Dsus4/G (0.79) | Gsus2 (0.79)G minor
43.043.5D2C D G AD7sus4 (0.90) | Csus2/D (0.88) | Gsus4/D (0.88)G minor
43.544.0D2C D G AD7sus4 (0.93) | Dsus4 (0.89) | Gsus2/D (0.89)G minor
44.044.5D2C D G AD7sus4 (0.92) | Csus2/D (0.89) | Gsus4/D (0.89)G minor
44.545.0D2C D F G ADm11(no9) (0.90) | F6/9 over D pedal (0.90) | Dsus4 (0.88)G minor
45.045.5D2C D F G ADm11(no9) (0.90) | F6/9 over D pedal (0.90) | G7sus4/D (0.89)G minor
45.546.0D2C D F G ADm11(no9) (0.93) | F6/9 over D pedal (0.93) | Dsus4 (0.90)G minor
46.046.5D2C D F G ADm11(no9) (0.95) | F6/9 over D pedal (0.95) | G7sus4/D (0.92)G minor
46.547.0D2C D F G AG7sus4/D (0.94) | Dm11(no9) (0.93) | F6/9 over D pedal (0.93)G minor
47.047.5D2C D F GG7sus4/D (0.94) | Csus2/D (0.90) | Gsus4/D (0.90)G minor
47.548.0G1C D F GG7sus4 (0.91) | Csus2/G (0.90) | Gsus4 (0.90)G minor
48.048.5G1C D F GG7sus4 (0.91) | Csus2/G (0.90) | Gsus4 (0.90)G minor
48.549.0G1D GG (0.86) | Csus2/G (0.84) | Gsus4 (0.84)G minor
49.049.5G1D GCsus2/G (0.85) | Gsus4 (0.85) | G (0.85)G minor
49.550.0G1D GG (0.85) | Csus2/G (0.84) | Gsus4 (0.84)G minor
50.050.5G1D GG (0.85) | Csus2/G (0.83) | Gsus4 (0.83)G minor
50.551.0G1D G BbGm (0.96) | Gm7 (0.88) | Bb6/G (0.88)G minor
51.051.5G1D F G BbGm7 (0.98) | Bb6/G (0.98) | Gm (0.94)G minor
51.552.0F1C D F G BbGm7/F (0.99) | Bb6/F (0.99) | Gm11(no9)/F (0.97)G minor
52.052.5A#2C D F G BbGm11(no9)/Bb (0.98) | Bb6/9 (0.98) | Gm7/Bb (0.98)G minor
52.553.0A#2C D F G BbGm7/Bb (0.97) | Bb6 (0.97) | Gm11(no9)/Bb (0.96)G minor
53.053.5A#1D F G BbBb (0.96) | Gm7/Bb (0.96) | Bb6 (0.96)G minor
53.554.0A#1C D F G BbBb (0.96) | Gm7/Bb (0.96) | Bb6 (0.96)G minor
54.054.5A#1C D F G BbBb (0.96) | Bbadd9 (0.94) | Gm7/Bb (0.94)G minor
54.555.0A#1C D F G BbBb (0.94) | Bbadd9 (0.93) | Gm11(no9)/Bb (0.92)G minor
55.055.5A#1C D F G BbGm11(no9)/Bb (0.93) | Bb6/9 (0.93) | Bb (0.92)G minor
55.556.0A#1C D F G BbGm11(no9)/Bb (0.92) | Bb6/9 (0.92) | Gm7/Bb (0.91)G minor
56.056.5G1C D F G BbGm11(no9) (0.92) | Bb6/9 over G pedal (0.92) | Gm7 (0.89)G minor
56.557.0D2C D F G BbGm11(no9)/D (0.90) | Bb6/9 over D pedal (0.90) | Gm7/D (0.87)G minor
57.057.5D2C D G BbCsus2/D (0.85) | Gsus4/D (0.85) | Gm/D (0.84)G minor
57.558.0D2C D F G BbGm11(no9)/D (0.89) | Bb6/9 over D pedal (0.89) | Csus2/D (0.87)G minor
58.058.5D1C D F G ADm11(no9) (0.90) | F6/9 over D pedal (0.90) | D7sus4 (0.89)G minor
58.559.0D1C D F G ADm11(no9) (0.91) | F6/9 over D pedal (0.91) | D7sus4 (0.90)G minor
59.059.5D1C D F G ADm11(no9) (0.92) | F6/9 over D pedal (0.92) | D7sus4 (0.90)G minor
59.560.0D1C D F G ADm11(no9) (0.92) | F6/9 over D pedal (0.92) | D7sus4 (0.90)G minor
60.060.5D1C D F G ADm11(no9) (0.94) | F6/9 over D pedal (0.94) | D7sus4 (0.91)G minor
60.561.0D1C D F G A BbGm11/D (0.93) | Gm11(no9)/D (0.91) | Bb6/9 over D pedal (0.91)G minor