The soundtrack consists of all the music in the game, as well as sound effects and jingles. Also included is the two trailer themes; the E3 trailer theme from 2014 and the infamous Switch Presentation trailer theme.
The limited edition also comes with a “Play Button”, which is a portable mp3 player.
The limited edition is priced at 7000 JPY ($66); and the regular edition (missing the play button and slip case) is priced at 5000 JPY ($47).
I love me some LoZ but haven't a Switch so I haven't played this one yet. I *am* going through Link Between Worlds on the 3DS (which just dropped to $20 thanks to it now being a Nintendo Select title) and it remains a joyous bit of fun. No small part of that is that the music is so good.
Highly recommend this album, which is a wonderful 45 minute medley of themes from the Zelda series played by the Japan Philharmonic (I've no idea why it lists Orchestra Nova San Diego? I actually asked the guy who ran the traveling LoZ concert series and he said JPO?). It came packaged with Skyward Sword but I've seen people selling it separately on Amazon for $20 https://vgmdb.net/album/40107