Room 608 by Horace Silver

Overview

Key: B♭ major · Chords used: 23 · Sections: 9

Form: Intro → A Section → A Section → Bridge → A Section ×2 → A Section → Bridge → A Section

Where these chords come from: a chord chart of this song written by a musician and shared on the iReal Pro forums, archived in the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). It's one musician's reading of the song, not a transcription checked against the recording. This page shows that chart as-is: the analysis below is generated directly from it by code, not written by AI. Consecutive repeats of a chord are shown once, and the piano voicings are our playable arrangement of each chord symbol, not a note-for-note transcription.

Section by section

Intro

• E♭/F – Dm7/F – Cm7/F – F7♭5 – D7♯9 – D♭7♯9 – C7♯9 – B7 – B♭maj9 – F7
  IV (bass F) – iii⁶₅ – ii7 (bass F) – V7♭5 – III7#9 – bIII7#9 – II7#9 – #I7 – Imaj9 – V7

A Section 1

• B♭ – G7 – Cm7 – F7 – Dm7 – G7 – Cm7 – F7 – Fm7 – B♭7 – E♭6 – Edim – B♭ – G7 – Cm7 – F7
  I – VI7 – ii7 – V7 – iii7 – VI7 – ii7 – V7 – v7 – I7 – IV6 – #iv° – I – VI7 – ii7 – V7

A Section 2

• B♭ – G7 – Cm7 – F7 – Dm7 – G7 – Cm7 – F7 – Fm7 – B♭7 – E♭6 – Edim – B♭
  I – VI7 – ii7 – V7 – iii7 – VI7 – ii7 – V7 – v7 – I7 – IV6 – #iv° – I

Bridge 1

• Fm7 – B♭7♯9 – E♭maj7 – A♭m7 – D♭7♯9 – G♭maj7 – F7♯9
  v7 – I7#9 – IVmaj7 – bvii7 – bIII7#9 – bVImaj7 – V7#9

A Section 3

Same chords as A Section 1.

A Section 4

Same chords as A Section 1.

A Section 5

Same chords as A Section 2.

Bridge 2

Same chords as Bridge 1.

A Section 6

Same chords as A Section 1.

Chord vocabulary

Chord	Roman numeral	Role	Heard in
E♭/F	IV (bass F)	In the key	Intro
Dm7/F	iii⁶₅	In the key	Intro
Cm7/F	ii7 (bass F)	In the key	Intro
F7♭5	V7♭5	Outside the key (chromatic)	Intro
D7♯9	III7#9	Outside the key (chromatic)	Intro
D♭7♯9	bIII7#9	Outside the key (chromatic)	Intro, Bridge
C7♯9	II7#9	Outside the key (chromatic)	Intro
B7	#I7	Outside the key (chromatic)	Intro
B♭maj9	Imaj9	Home chord (tonic)	Intro
F7	V7	In the key	Intro, A Section
B♭	I	Home chord (tonic)	A Section
G7	VI7	Secondary dominant (V/ii)	A Section
Cm7	ii7	In the key	A Section
Dm7	iii7	In the key	A Section
Fm7	v7	Borrowed from B♭ minor	A Section, Bridge
B♭7	I7	Secondary dominant (V/IV)	A Section
E♭6	IV6	In the key	A Section
Edim	#iv°	Outside the key (chromatic)	A Section
B♭7♯9	I7#9	Secondary dominant (V/IV)	Bridge
E♭maj7	IVmaj7	In the key	Bridge
A♭m7	bvii7	Outside the key (chromatic)	Bridge
G♭maj7	bVImaj7	Borrowed from B♭ minor	Bridge
F7♯9	V7#9	Borrowed from B♭ minor	Bridge

Harmonic highlights

• Fm7 (v7) is borrowed from the parallel key, B♭ minor.
• G♭maj7 (bVImaj7) is borrowed from the parallel key, B♭ minor.
• F7♯9 (V7#9) is borrowed from the parallel key, B♭ minor.
• G7 acts as V/ii: it resolves to Cm7.
• B♭7 acts as V/IV: it resolves to E♭6.
• B♭7♯9 acts as V/IV: it resolves to E♭maj7.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Room 608” (credited “Silver Horace”, style Medium Up Swing) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata.
• Section names: from the chart's own markings: section names written on the chart (Intro, Verse, Chorus…) are kept, and rehearsal letters are shown as “A Section”, “B Section” and so on (the B of an AABA song is called the Bridge).
• Cross-check: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Room 608” (credited “Silver Horace”, style Medium Up Swing) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata. A separately posted chart of the same song; its chords match this page's closely when both are read in the same key (similarity 82%).
• Chord charts are often written in a key that suits a particular singer or band, so this may not be the key of the original recording.
• Verified: two community charts of this song, posted in different forum threads, agree on its harmony. They're still charts, not transcriptions checked against the recording.
• Rhythm and chord durations aren't shown; each step is one chord change.