An instrument training device for use with a stringed instrument includes a plurality of training members. Each training member is constructed of a flexible material and includes opposed ends. Each end includes complementary fastening material such as hook and loop fasteners for securing a respective training member about a fret board of a stringed instrument by releasably fastening the opposed ends together. Each training member includes indicia on a front portion thereof corresponding to chord sets or tuning schemes. The front portion is constructed of a resilient or elastic material that may be stretched across the front surface of the fret board such that the indicia thereon is situated directly beneath predetermined strings. This enables each training member to be used on stringed instruments of different sizes or widths. Each training member includes an identifier for positioning the training member at a predetermined position along a fret board.