Sextet

[Britney]

a group of six musicians or singers who play or sing together, or a piece of music for six players or singers:

[Raeanne Dimick]

1 : a musical composition for six instruments or voices. 2 : a group or set of six: such as. a : the performers of a sextet. b : a hockey team.

[Julene]

Having nothing to do with Sex. It is a group of six [musicians] who get together and play music. This is any kind of music rock to [classical], there are just different instruments. Like a [quartet], but with six people.

[Dianne]

An [orgy], specifically of [six] [people].