Here are note layouts for standard (Richter-tuned) diatonic harmonicas in all 12 major keys.
Blow or Draw on Top?
Some folks prefer to list the blow notes on top and the draw notes on the bottom, since that’s the way the reedplates are set up if you take the covers off. However, most students I work with tend to think of higher sounds as being UP and lower sounds as being DOWN. From holes 1-6, the blow notes are lower-pitched – thus, blow notes are on the bottom row, for the sake of visualizing the note layout. If you look closely, you’ll notice that the lower / higher relationship flips starting with hole 7, but don’t worry about it – just leave the blow notes on the bottom row.
C Draw D G B D F A B D F A Hole 1 2 3 4 5 6 7 8 9 10 Blow C E G C E G C E G C D Draw E A C# E G B C# E G B Hole 1 2 3 4 5 6 7 8 9 10 Blow D F# A D F# A D F# A D E Draw F# B D# F# A C# D# F# A C# Hole 1 2 3 4 5 6 7 8 9 10 Blow E G# B E G# B E G# B E F Draw G C E G Bb D E G Bb D Hole 1 2 3 4 5 6 7 8 9 10 Blow F A C F A C F A C F G Draw A D F# A C E F# A C E Hole 1 2 3 4 5 6 7 8 9 10 Blow G B D G B D G B D G A Draw B E G# B D F# G# B D F# Hole 1 2 3 4 5 6 7 8 9 10 Blow A C# E A C# E A C# E A B Draw C# F# A# C# E G# A# C# E G# Hole 1 2 3 4 5 6 7 8 9 10 Blow B D# F# B D# F# B D# F# B Bb Draw C F A C Eb G A C Eb G Hole 1 2 3 4 5 6 7 8 9 10 Blow Bb D F Bb D F Bb D F Bb Eb Draw F Bb D F Ab C D F Ab C Hole 1 2 3 4 5 6 7 8 9 10 Blow Eb G Bb Eb G Bb Eb G Bb Eb Ab Draw Bb Eb G Bb Db F G Bb Db F Hole 1 2 3 4 5 6 7 8 9 10 Blow Ab C Eb Ab C Eb Ab C Eb Ab Db Draw Eb Ab C Eb Gb Bb C Eb Gb Bb Hole 1 2 3 4 5 6 7 8 9 10 Blow Db F Ab Db F Ab Db F Ab Db F# Draw G# C# E# G# B D# E# G# B D# Hole 1 2 3 4 5 6 7 8 9 10 Blow F# A# C# F# A# C# F# A# C# F#