Aebersold wrote a good book for beginning ear training. David Baker's ear training series is for more advanced-I'm not sure if it's available in mass production or if it was just a torture device for his students at IU. If nothing else, the Aebersold web page is a good source for many ear training books. Most of them come with CD's. Pick the one that looks like it fits your needs. If you are self motivated pair up with a friend, have the friend play one random note on a keyboard or their instrument. Sing the note then find it. If you do this as often as possible you will get good at this. Once you have a good track record with single note, then have your friend play 2 or 3 notes.

There are a couple of free online ear training tools at the links below which can help you learn intervals and chords. There's also call-and-response random melody generation. Ear trainer: www.iwasdoingallright.com/jazz_blog/166 Another good way to improve your ear is to try playing simple songs by ear. Here's a song randomizer to help with that: www.iwasdoingallright.com/ear_training/90 Regards, -Rick