He's pretty much like Revo, a younger pop/rock producer with only a little anime/game scoring experience. I'm guessing the producer for this series is a fan of the bands Sound Horizon (Revo) and supercell (ryo) like myself. Though I do wonder what the producer is thinking considering ryo has never produced anything remotely fantasy-rock styled. The music for Bravely Second is not going be like Bravely Default, I can tell you that.
ryo started out as a vocaloid producer and quickly became well known for many hit pop/rock songs. He's still the most famous vocaloid producer today, though he is no longer active as one. He's known for his piano/strings based style and strong upbeat instrumentals. His most well known song would definitely be
Black Rock Shooter (
inst only) which has spawned a TV anime, an OVA, a couple games, and a manga (really). In 2010 he
scored the music for the OVA, which is his only score to date. In addition to the electronic/rock tracks like
Battle of BRS there were some more pleasing tracks such as
Kakeru,
BRS Theme 1 and
BRS Theme 2. He's also done a couple instrumental tracks for other works like the
Theme of Cencoroll (an electronic track that really could have been more developed) or the trailer music for anime film Nerawareta Gakuen. He's much more known these days for his band supercell, which he writes all the music and lyrics for. Their most famous song is
Kimi no Shiranai Monogatari which was the ending theme for the popular anime Bakemonogatari. More recently he's been experimenting with a couple different projects like his new band EGOIST (
Namae no Nai Kaibutsu) as well as producing pop songs for singer Tia (
Heart Realize).
I feel like his more recent work hasn't been nearly as strong as his earlier vocaloid and supercell works but big projects tend to bring out the best in composers. We'll see. Hopefully he'll have some talented arrangers behind him as well.