Henry Purcell – ‘Music for a While’
 
Purcell’s beautiful ‘Music for a While’ was written for Dryden’s 1679 play Oedipus.
This album of harpsichord accompaniment tracks includes the following versions:
Soprano (C minor, original key): A=415, A=440
Mezzo soprano (G minor): A=415 and A=440
Contralto (F minor): A=415 and A=440
 
Giving a total of 6 different pitch options.
 
For each pitch there are the following tempo versions.
Slow (crotchet = 38)
Medium (crotchet = 44)
Fast (crotchet = 50)
Super-fast (crotchet = 55)
 
Total tracks: 24.