The term 'Bassless' is used to describe a type of music that does not contain any bass instruments. This type of music is often characterized by its lack of low-end frequencies, which are typically provided by bass instruments such as the double bass, electric bass, or bass guitar. Bassless music can be found in many genres, including jazz, classical, and pop. The term 'TINNY' is often used to describe this type of music, due to its thin and treble-heavy sound.