Well, three composers worked on FFX. Uematsu did the majority of the work. Hamauzu did a small portion, and Nakano did like four pieces. All the ones that you mentioned liking were Uematsu's pieces. His pieces for FFX were a throwback in style to pieces from games such as FFI-IV, as well as some nods to both VIII and IX. You might enjoy the Kingdom Hearts II Piano Solo book. Also, you might try getting some of Joe Hisaishi's work for the Studio Ghibli films. There are several different books available from
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