You open your mail to find a mysterious note - whoever wrote it, they didn't sign their name!
Long time no talk - I've been busy writing!
In fact, I've been invited to give a speech on it.
To be honest, I'm a little worried about being so visible.
Fortunately, a buddy of mine will be helping me with security.
Those gators can be pretty scary, you know.
Afterwards, I'm jamming with one of my musician friends.
It'll be pitch perfect!
(Don't make that sour face at me, you know you love terrible puns.)
What is this letter about?
Hint (how to solve):
Each line contains a clue to a word or phrase. All of those have something in common which will lead you to the answer word.
Your friend is definitely not writing all those things by hand..