Thanks, I'll try that and reply if it works.
xMrSchmidtxMost likely you need an audio mod or to convert the files to something minecraft can recognize. I think, as it is, that minecraft doesn't play music based on the time, but randomly chooses songs (at least, in my experience.) What you're suggesting is definitely possible, but probably would need to be modded.
EDIT: I'm not sure as to the length requirements of the clip, it's something you'd also need to look into
Alright, I'm pretty sure I can convert the audio files with Audacity, and I thought Minecraft would just loop the files. And for the day/night cycle, do you know if there are already any mods for that?