Music Theory Learning Device

A music theory learning device comprising:

• a plurality of discs;
• at least one fastener;
• an instructional booklet;
• the plurality of discs comprising a first disc, a second disc, and a third disc;
• the first disc comprising a first surface and a second surface wherein the first surface is positioned opposite to the second surface across the first disc;
• the second disc comprising a third surface and a fourth surface, wherein the third surface is positioned opposite to the fourth surface across the second disc;
• the third disc comprising a fifth surface and a sixth surface, wherein the fifth surface is positioned opposite to the sixth surface across the third disc;
• the second disc being mounted adjacent to the first disc, wherein the fourth surface is oriented towards the first surface;
• the third disc being mounted adjacent to the first disc, wherein the sixth surface is oriented towards the second surface;
• the fastener being axially integrated between the plurality of discs;
• the plurality of discs being concentrically connected to each other through the fastener;
• the second disc and the third disc being rotatably connected about the first disc;
• and
• the instructional booklet comprises a plurality of formulas and tables.