Home Featured Billy Sheehan and Yamaha Announce the Attitude 30th Anniversary Bass Billy Sheehan and Yamaha Announce the Attitude 30th Anniversary Bass planetsixstring October 2, 2020 comments off Tweet on Twitter Share on Facebook Google+ Pinterest This post was originally published on this siteThe limited-edition model features a high-register scalloped fretboard, DiMarzio Woofer and Will Power split pickups, and dual outputs.