Led by Patrick Adams
You can easily recognise his touch - "Just Let Me Do My Thing" contains his characteristic synthesizer - a classic disco track from the early stages of the Prelude label, and oddly made it into the UK charts.
From Sine's only LP, best of all for the disco addict is "Mosquito Walk".
There is a UK-only 12" (extended mix) of "Just Let Me Do My Thing". (There were no US Sine 12"es from the 1970's).
Sine came back in the 1980's for "Rotation".