henry_crun,
Are you sure the problem is not located between the chair and the keyboard ?
MP3 players are generally perfectly capable of playing albums in the order they were on the CD. MP3 players are generally perfectly capable of playing custom playlists in the order they were configured on the computer.
Suggesting that MP3 players discriminate against classical music is pure codswallop for which you deserve to be slapped on the face with a dead fish for even contemplating ! That's just a stupid supposition.
Have a good night's rest and try again with a fresh pair of eyes would be my advice.