Prog Rock A-Z Day Two: B!

Rules lifted from u/JJKeys's first post yesterday:

1. Consistant Formatting - Just to make things easier, format it as: Artist - Song, and adding a link to it would be great if you mentioned a certain song

2. Don't repost artists - Please read through the thread so you don't mention an artist that's already been said

3. Only downvote irrelevant comments - Don't downvote comments just because you don't like the artists, downvotes should be saved for comments that don't contribute to discussion

4. Only post one artist - It isn't a contest of your extensive knowledge of prog; no one likes a show-off If this thread's successful, then I'll try and continue with these type of threads for every letter. Lets get this ball rolling!