https//en.wikipedia.org/wiki/Voluntary_music

No. 1 E-flat major
No. 2 in F major
No. 3 in C minor
No. 4 in C major
No. 5 in A major
No. 6 in B flat major
No. 7 in D minor
No. 8 in A flat major
No. 9 E major
No.10 in B-flat major
No.11 F major
No.12 D major