"Concerto" just arrived from Amazon.co.jp today, and with 2 listens here's a good summary:
It's an Orchestral blend of trademark Kikuta + FF Tactics style Sakimoto.
First half has a lot of beautiful and calming tracks, so I thought it might be all relaxing stuff, but then the Second half brought in lots of Military Marches and snare drums for Sakimoto style battles.
Sound is of much higher caliber than Lost Files/Alphabet Planet, but since the booklet doesn't mention specific live performers, I'll assume it's very high quality orchestral samples.
Here's a 20 MB sample pack of mp3s so you can check it out:
Kikuta's Concerto CD Samples.rar
Oh yeah, ordering is at this URL: