Hi Tim, you asked for some proof-reading. Here are my comments page by page.
About Me
' I also play on two CD's produced...' - Lose the apostrophe on 'CD's'. CD's what exactly? Remember, an apostrophe is possessive.
Listen
'of the Beatles classic with...' - Add an apostrophe after Beatles, as it is their classic so 'the Beatles' classic'.
'arranged for two guitar by' - Two guitars rather than two guitar?
'Gabriel Faure' - Maybe an accent over the 'e' in Faure, if you want to be accurately French.
General a little inconsistent with full-stops (periods) - some paragraphs have them, some don't. Choose to have or have not and stick with it.
Purchase CD
No noticeable errors.
Recording Studio
'highest quality mic's and preamps' - Again, ditch the apostrophe. Mic's what?

Same again with 'pre's' and the other 'mic's' on the page.
Home Studio Tips
'much more effect on' - Use 'affect'. Something can have an affect on something else, while an effect is something like a plug-in, or a 'special effect', more like a noun.
'try two mic's' - Apostrophe...same again on last line.
My Teaching and Teaching Materials - no errors.
Links
'During the 90's' - No apostrophe after 90. It is the first part of the decade name that has been dropped, so you'd write '90s, with the apostrophe first, not between 0 and s.
Again, sort out full-stops - either use them consistently or not at all.
I hope that helps!
Thanks.