It is beautifully framed (custom-frame, of course) and came to me. Totally unexpected. It is like a forgotten extra Birthday/Christmas gift!
There are many frequencies available in the world. Currently, most American musicians use the standard pitch (A=440Hz) for the tuning, but that does not apply to everyone in the world especially other than Rock/Commercial music, I believe.
Many classical orchestras tune higher like 442Hz to 445Hz, and guys like John Lennon & Paul McCartney have tuned their instruments to C5=528Hz (A=444Hz) in some of their songs (Paul started recording songs in 444Hz/528Hz after 1999).
Practice…. to me, used to be a "duty" instead of a fun thing. Being a music student, I had to be a perfectionist who supposed to practice 5+ hours per day, supposed to think/talk about music all time, listen to them as much and many types/genre as possible, and so on. Honestly, I was not sure whether or not I "like" music for a long time.