The term 'Voice Between Bass and Tenor' is referring to the BARITONE voice, which is an 8-letter word. The BARITONE is a type of male singing voice that lies between the Bass and Tenor voices in range. It is the most common type of male singing voice and is typically used for singing in choirs and musical theater. Baritones are often referred to as the 'middle voice' because they are able to sing both lower and higher notes than the Bass and Tenor voices.