$24.99 MetroDrone®: All purpose practice tool Tuba quantity Add to cart Categories: Guitarists, Bass Guitarists, Ear Training, Time Studies, Instrumentalists Description Description Digital Downloads are Non-Refundable Related products 25 Ear Training Tips: Video Course $24.99 Add to cart Doing Time Rhythm Series Bundle $34.99 Add to cart New York Guitar Method Volume Two Physical Copy $21.99 Add to cart Doing Time with the Blues Volume Two Digital Copy $29.99 Add to cart