I know this is round 3 of my talks about buses, but on YouTube, there is a man by the name of Dennis Hampton who filmed many bus routes in the St. Louis area. he filmed route 258, but I hope he also filmed MetroBus route 91 since that's the one that serves Piano Distributors. He in a way a true Yanni fan because he shows love for the St. Louis area and his videos helps out for those who can't afford to rent a car. I saw a Yamaha piano at Mercy Clinic in Ballwin eventhough where it is really located is Ellisville. While I was having coffee, I walked over to the piano to find out where it draws it's tunes from. I assume they are MIDI files.