Harmonia Music - CHS practice tracks
Sing along online or download to use on the move!
Here's this term's offerings. Please be forgiving of my mistakes, but you'll get the general gist!
Left click to play, right click to download and save. Or the other way round.

To change the speed of the tracks you can use a free program by ABRSM called Speedshifter. Copy and paste this link if you can't find it: gb.abrsm.org/en/exam-support/practice-tools-and-applications/speedshifter/