its in the place where you get the reed pipe
Go to Apollos temple get the free flute and then go to the music muse(the one playing the flute she is also in apollos temple)And pass her test then she will give you a tune to play.
you can't
it is in Bassae, Peloponnese, Greece
It is at Delphi. If you want more specific, Google it
you get a flute from Apollos museum and click the music statue and play it for Cerberus
You will find a star fish in Apollos museum and then you will take it to possidens door and then you press use and then you can get in.
You click on the colors around the reed pipe you get from Apollos temple
the music temple
carbonated coconut milk, a secret ingredient from the temple, and a bone from the temple
euterpe is a statue in apollos palace on greek mythology island. shes the one who teaches you how to play your reed pipe
its Hades temple
The muses are in the temple of Apollo.