How to play Albums instead of individual tracks

[cakebaking]

My music is in folders, by album name on a Synology DS212J network drive.

If I click on a song in one of these folders using the AirPlayer app, it only plays that one song and stops. Is there a way to play the album (ie everything in the folder)?

Is there a setting I please need to change in Airplayer?

[admin]

in the playing window has a "play mode "button in the top right.
play one, loop one/all/random