this replace the orginals songs?

I've heard from a user in this comment section that one of the disks doesn't work, implying that you replaced the music present in some disks. I'd say it would be convenient if you also released this as a mod, so the players that are willing to play modded minecraft can listen to all songs, because I don't think that texturepacks like yours can simply add new items like music disks. It won't work on servers though, so I don't suggest you to remove this soundpack entirely and replace it with the mod. Also maybe the mod would be too simple and PMC won't allow it to be posted or something, as it would only add a few music disks.

I couldn't check this mod out thoroughly because I'm a rather busy person right now...

i don't hear moog city and beginning in the main menu.

So it has ALL the songs from Minecraft volume beta AND volume alpha?

One of the music discs is messed up right now because the music file was corrupted, I'll fix it in the next update

why didin't you make it for 20w45a