What It IsAuthor: Terrasson, Jacky Format: Import Details: Amazon. ca Jacky Terrasson has built a reputation as a lean and mean pianist with the ability to inject lightening bolts of energy into his work. On What It Is, however, Terrasson has taken a decidedly different direction. Rather than calling on his excellent trio, he has chosen to flesh out his band with the addition of everything from flute to guitar to harmonica. While this certainly allows Terrasson