Canon EOS 90D Advanced User's Manual page 376

Editing Video Snapshot Albums
Selection of Background Music
Albums and slideshows can be played with background music once you
copy the music to the card, using EOS Utility (EOS software).
For instructions on copying background music to cards, refer to the EOS Utility
o
Instruction Manual.
376
1
Select [Background music].
Set [Background music] to [On].

2
Select the background music.
Turn the < 6 > dial to select the music,

then press < 0 >. For [Slide show], you
can select multiple tracks.
3
Listen to a sample.
To listen to a sample, press the < B >

button.
Use the < W > < X > keys to adjust the

volume. Press the < B > button again
to stop playback.
To delete the music, turn the < 6 > dial

to select it, then press the < L > button.