What in the world??

Ok...so this is really strange for the last 1 1/2 hours I have heard this random guitar strumming.  Not my husband mind you.  I thought it was coming from the apartments behind us.  I'm still hearing this guitar music so I venture outside and it's coming from our upstairs neighbors.  They are noisy enough as it is...and now this?  OH MY!  I wish Aaron was home to hear this!  Honey...you are welcome to jam as loud as you want!  And....you're better than whoever is upstairs...and I don't think it's Guitar Hero!