We're located inside The Collective School Of Music, 541 Sixth Ave, between 14th and 15th St., 3rd Floor ('though for security reasons, you must enter by way of the 4th floor). There are LOTS of ways to get here:
Take an F or M to 14th Street.
Or take an L to 14th Street and 6th Ave.
Or take a 1/2/3 to 14th St., and walk one block east.
Or an N/R/Q/W to 14th Street, and walk one block west.
Or take a 4/5/6 to 14th Street, and walk a couple of blocks west (or hop on the L to 6th Ave.)
Or take a train to 14th Street.