New GarageBand will match your grooves and teach you how to play guitar

Xander Soren with Apple's product marketing showcased several new features in iLife '11's GarageBand including:

• Groove matching, termed an automatic "spell checker" for bad rhythm, or as TUAW's Kelly Guimont just observed: "Thanks to GarageBand, your second grader's Christmas concert can sound like the cast of Glee!"

• Flextime to make an audio clip longer or shorter

• Piano and guitar lessons built into the software that includes music recorded by an Indiana chamber group. You get scored on lessons and can see exactly where you missed -- shades of Rock Band and Guitar Hero