the Wooden Musical Wheel is a perfect tool for musicians and composers from all experience levels. From practicing scales in all 12 keys to constructing 7th,9th, and 13th chords, the Wooden Musical Wheel makes building chord structures and scales memorable and fun. By turning the wooden wheel, you can see all "the right notes" within the scale, and build chord progressions based on the notes available. The Wooden Musical Wheel comes with a booklet that explains the basic music theory principles for utilizing the tool at its best. • Handcrafted with prime quality birch wood • Varnished with beeswax and flaxseed oil • Great for any note based instruments • Works with all 12 keys • Laser engraved scale degrees, for increased legibility the Wooden Musical Wheel can be used both for practice and songwriting purposes. It's a breakthrough tool for visualizing note relations and transposition of the existing tunes. Every product is handmade mindfully with our FlowCraft™ method.