【Content Introduction】 This is a tutorial book that covers basic trombone exercises to understanding harmony. It carefully explains the fundamentals such as pitch, major and minor keys, and is useful for self-practice in brass band. 【Condition】 It has been stored at home for a long time, so there are signs of aging such as scratches and wrinkles on the cover. The inside has no writing and is in good condition for use. Please check the photos for the condition. 【Shipping】 It will be shipped in a plastic bag to prevent water damage. 【Other】 Instant purchase OK. We do not offer price negotiations or dedicated listings.