Readings & Meanings:
Shimonoseki is famous for fugu/pufferfish cuisine.
This doesn't concern you, so don't stick in your two cents (literally: stick your mouth in).
Lately, I've started having an interest in classical music.
I tied the dog to the entrance.
門, the gate radical, is here.
That inner phonetic element used to be quite a bit more complicated: 關. That's 丱 and 幺, showing two boards connected by a thread/cord. That's where the "checkpoint, entrance barrier" meaning comes from. "Connect" is apparently a borrowed meaning.