You probably got here via an outdated link to
http://www.pobox.com/~jdreyer. Please urge the webmaster of the site you came from to change the link to whichever of the following makes the most sense in context, and please visit some of these links yourself...
http://music.jondreyer.com(Jon Dreyer's musician page)
http://www.passionatelycurious.com(Jon Dreyer's tutoring page)
http://www.jondreyer.com(Jon Dreyer's generic page)