Sanding (dance) the box of rosin before matches to improve his grip. Sims' popularity as a tap dancer and career at the Apollo certainly made him one of the most if not the most influential sand-dancer of all time. Sand dancing was also used by the popular comedic vaudeville trio, Wilson, Keppel and Betty. They spread sand over the stage in one of their most well-known numbers, "Sand Dance". In their performance, there was no allusion to African American heritage; rather to the sandy environs of Egypt, a clear inspiration for their number. In spite of this deviation from the African American
Trio (music) a contrasting second or middle dance appearing between two statements of a principal dance, such as a minuet or bourée. This second dance was originally called a "trio" from the 17th-century practice of scoring it for three instruments, for example two oboes and bassoon. Later examples continued to be referred to as trios, even when they involved a larger number of parts (; ). In the 18th century, the term "trio" was also used to describe any instrumental composition for three unaccompanied musical strands, regardless of the number of instruments actually involved. Trios for a single keyboard instrument are found