Super Simple Chords

Piano chords · Blues & boogie

I’ll Know: piano accompaniment sheet music

By Frank Loesser

Tuning the piano…
Learn it
Style

Left hand Velvet jazzRight hand Late-knock chordsChords the loop the song repeats most

I’ll Know written out as piano music: the V7 – I – vi – ii loop in F major for both hands, with chord names and finger numbers. Press play and follow the cursor. The left hand plays velvet jazz (lh shell voicings (1-7 / 1-3)) and the right hand late-knock chords.

I’ll Know chord chart

The loop once round, bar by bar, in F major. The roman numeral says the chord's place in the key, so the same chart works in any key.

BarChordNumeralNotes
1C7V7C E G Bb
2FIF A C
3DmviD F A
4GmiiG Bb D

What the sheet music shows

The grand staff: the right hand on the treble staff, the left hand on the bass staff, with the chord names above and a finger number on each note (1 is the thumb). It is the accompaniment: velvet jazz (lh shell voicings (1-7 / 1-3)) in the left hand and late-knock chords in the right, over the C7 – F – Dm – Gm chords.

Press play and a cursor follows the music. Above it, Colours paints each note in its key’s colour and Note names writes its letter on its head.

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Questions about I’ll Know

Does the sheet music for I’ll Know have finger numbers?

Yes: every note of both hands has its finger number, 1 being the thumb. To read the notes alone, turn Fingers off above the music.

What chords are in I’ll Know?

The loop is C7 – F – Dm – Gm (V7 – I – vi – ii) in F major, and the song ends on Bb – C – F.

What key is I’ll Know in?

F major, at about 120 beats a minute in 2/2.

What does the left hand play in I’ll Know?

Velvet jazz: lh shell voicings (1-7 / 1-3), an easy pattern. It follows the chords, so the same shape works for every bar.

Is I’ll Know easy to play on piano?

Yes. Both hands play easy patterns over 4 chords. Learn the chords first, then add one hand at a time.

Made from 3 arrangements of this song: the left and right hands are the patterns these scores repeat most.