Don't understand. Different songs in different keys maybe. A lot of digital artists now use pitch correction technology which could alter things. Individual tracks could be recorded at different times or locations with tuning different each time. What is the CD you are experiencing this with?
Pitch changes with digital music???
I was using Plex (beta software) to manage my digital music collection. Recently, when I was playing some music on "Random" mode, I guess the system was running out of juice. In any case, what happened was some tracks suddenly play at higher pitch and the next track lower pitch (i.e., like a record with the wrong rpm). My question, mainly just out of curiosity, is how can it happen with a digital file? Thanks for your input.