As a pro who utilizes the Tyros2, I concur with Ian's comments that Tyros2 was primarily designed & targeted to the arranger keyboard hobbyist-enthusiast. Still, I appreicate my Tyros2 for it's onstage ez 'on the fly' navigation, terrific sounds, and responsive keys. As I have reiterated before, for arranger style performance, 61 keys is fine. I'd of course would prefer 76 notes, but only if the case size & weight remain the same as Tyros2. For serious solo piano performance, 76 is required, and 88 notes prefered, so (optionally) taking along an 88 note controler board for only those occasions offers flexibility.

Scott