"Audio On/Off"
"Next Audio Selection"
Well, earlier I suggested the above,
but "Audio On/Off" wouldn't be right since the Bubble audio could still be on.
"Playlist On/Off" seems better, to me.
Also, sorry to be such a stickler, but "Next Music Track" wouldn't technically be accurate if the playlist consists of non-music sounds such as sounds of a rainforest, or jungle, or river bank, etc. (Yes, I'll admit it, I actually have these. Now you know who bought those CDs.)
Perhaps, a more accurate "Next Playlist Selection" would be more all encompassing and would appear consistant with "Playlist On/Off", too.
Also, then, in the "Program Settings" menu, change the "Music" check box/volume adjustment to "Playlist".
Oops - also in the "Music Playlist" screen, change "Music Volume" to "Playlist Volume. Maybe also call the screen the "Audio Playlist" instead of "Music Playlist"?
Geez, then you'd also have to change the button on the "Marine Aquarium Settings" main screen to "Audio Playlist", too.
Just throwing out suggestions. Please don't throw anything back at me.