I didn't think that this would have taken so long, never mind, I now hand over the leaky baton to Phil!
AOTC is one word, a noun.
"Music" is not the AOTC, but.....
AOTC is one word.
ABSTRACT
In a desperate bid to do something about the terrifying speed of this one I could mention that the AOTC is connected with an interest of mine, but not steam locos.