I connect teeth, cards, songs, and cities without ever moving. What am I?

My first four play music for ears My final three count years You use me to wrap a cut I'll help keep a wound shut

A product of cutting or typing An exploitation or a harmless documentation

I'm a sudden movement, a violent pull. I also am thrown into the works, intentionally or not. But you may know me the best as something that will twist your nuts and bolts.

In an age of quills, thou dost appear, A bard's mechanical muse, I fear. Thy keys do dance, In rhythmic trance, Spelling tales with thy metal cheer.