QUOTE (brainlesswonder @ Apr 30 2007, 06:46 PM)

Of course, you're more than welcome to start that scale on the B and then you'll just be playing the C major in Locrian mode (I think).
... or playing a scale of C in which you start on a B ...
(Sorry, I'm going to be a little picky here, so don't take offence!)
You are completely correct about Locrian mode starting on the B and using the notes of the C major scale, but there is a little more to it than that ...
Its more than just the notes, its also the intent behind it and the chord structure used (a little hazy I know). So to be playing Locrian mode, you would also need to add a Locrian chord progression to the mix, and make B the tonal centre - which is a posh way of saying the chord that you base the riff around.
There is nothing wrong with starting a scale of C on the B note - some tunes rely on it, and if you play it over for instance a chord of C it definately isn't modal at all. By
convention when we are practicing scales we start on the root note - that of course is perfectly sensible, but when playing songs in general there is no such restriction, and thousands of songs start their melody on the B or scalar equivalent (its the Major 7th). So,
- Practice scales using the root note to start
- Don't be afraid of the notes below the root
- Definately use them when writing songs riffs and solos
The rest of your post was some sound advice