OK, here's another question from one of you readers out there...

Q: How does it work when a band goes into the studio to record? Do they all play at the same time like I see on TV? I've heard of "overdubs" and stuff, but how does that work? How long does it take to record a whole record?

A: You ask so much, young Jedi...

Since the days of multi-track (which began widespread use in the mid 60's), there has been much less of a need to record a band playing all at the same time. It's enabled a lot of musicians to play multiple parts, fix-up mistakes, and so on. For the most part, no, the band doesn't play all at once. In order to get the best sound from the band, the engineer will usually want the sound of the instrument all by itself on a single track, without "bleed" from the other instruments, so it can be controlled and mixed together properly in the end. "Overdubs" are additional instruments added on after the basic tracks have been recorded (usually drums, bass, and guitars). This can include additional guitars, synths, background vocals, etc.

As for how long it takes, well, it depends. Some bands will be able to play their music "live" and make it sound great, so it takes only a few days. Various things can slow down the process; recording many parts separately, bad songs being re-thought after they've been recorded, bad musicianship, bad engineering, too much critical listening, too much material (or too little material), personality conflicts, lack of money, etc. Some albums take years to complete, and it can be harrowing process sometimes. It's a process of balance that takes time and experience.