This is a test: Put on any of the Dave Weckl Band's five CDs, wait a minute, and see if you can keep all your muscles from moving, especially the ones at the corners of your mouth. This is music you listen to because you WANT to. Funk with a capital "FUN." Serious chops with a playful attitude. Heavy on texture, light on repetition, the newest Weckl band disc is aptly named Perpetual Motion, a reference to master drummer and teacher Dave Weckl's desire to always keep moving forward. E …