The term 'thin in tone' can be described by two crossword solutions: REEDY and TINNY. REEDY is an adjective that describes a sound as being high-pitched, weak, and quavering. It is often used to describe the sound of a reed instrument such as a clarinet or saxophone. TINNY is an adjective that describes a sound as being thin, metallic, and lacking resonance. It is often used to describe the sound of a cheap speaker or a poorly tuned instrument. Both words are used to describe a sound that is thin in tone.