When seen from behind at the concert near the start, both B.A. and Murdock seem very into the music, both giving each other five along to the music. When showing their faces in scenes surrounding this, B.A. seems a lot less impressed with Murdock's over the top attitude to the music.
At the concert at the start of the episode, Rick James is playing a 4-string bass guitar. He then throws it off himself, and the shot cuts to Hannibal catching it, but it has turned into an electric guitar (with it's 6-strings).
When Hannibal disables the prison transport van, the right side of the van sinks before Hannibal shoots the tire out.