Almost Doubled Instagram Followers in 3rd week

Fell 4 short of 80 and doubling my Instagram followers this week. Searches music studios and added musicians that recorded there to widen my reach, but I just realise that all my real prospective users are on Facebook: 20k - 30k of amateur/non-pro musicians. I can only really start targeting them when my MVP is up. Charging towards the finish line to launch that 24 Sept.