Open mic at Pegasus with the Green Muse The Green Muse Open Mic returns to Pegasus Coffee House from 8 to 10 p.m. Tuesday nights (except the first Tuesday of the month). April 14, 2015 12:30 pm Pegasus Coffee House The Green Muse Open Mic returns to Pegasus Coffee House from 8 to 10 p.m. Tuesday nights (except the first Tuesday of the month). The open mic is for musicians, comics, storytellers, poets and anybody else who wants to use the microphone.