Burge offers two courses, relative pitch and perfect pitch. You can purchase them separately or together. I think you can buy the various levels of the relative pitch course separately although I wouldn't advise it. This post reviews the relative pitch course, I'll do another for the perfect pitch course. This course is geared for anyone who wants to improve their ability to hear and identify chords and notes in relation to one another. If you already have established relative pitch and can identify chords, scale & chord steps and intervals immediately, this course is not for you. Burge is very logical, excellent at explaining things and the courses are laid-out to maximize your learning. There are 5 levels each containing 8 lessons (8 CD's) except the first level which has 9. 41 lessons in all. You do not have to be able to read standard musical notation to take the course. This is an all or nothing course, pass/fail. You graduate with an A or don't graduate. Each lesson and level builds off the previous one. In the first level he gives a lecture on what relative pitch is and how the course works. He defines relative pitch as "the mind's understanding of what the ear hears". He then gives you exercises to teach you how to develop the ear. He insists that you work on the course no more than 45 minutes a day. Then it's testing and drilling. You must pass tests with zero errors and drills with one error or less. Later, you are not allowed any errors in any drill or test. At the end of each level is an exam that you must past perfectly before moving on to the next level. He starts off with Perfect 4ths and Perfect 5ths. You need to be able to identify the names of each interval, sing them going up and going down and identify them being played harmonically and melodically up or down. Then it's Major and minor 3rds and he keeps adding intervals up to a major 9th. He also teaches chord quality (major, minor, diminished, augmented), inversions (root, 1st & 2nd) harmonically and melodically up and down. You will be required to spell all chords in all keys. He includes 9ths, 7ths and 6ths (he may go to 13th's dunno, haven't finished the course) and alterations. You also need to identify scale tones, (5th of the scale, 2nd, 7th, etc) and chords in a scale (tonic, dominant, sub-dominant, mediant, etc). in all major & minor keys. You will be required to figure out songs like "Yankee Doodle" straight out of your head, (no gtr) and one exam is Bach's Two Part Invention in F where you have to figure bass and treble out by ear from his playing. How much time does it take? That just depends on you, some take longer than others. I've had to repeat drills and tests many times. BTW - It doesn't matter if you start to memorize the drill, that's part of the learning process. I highly recommend this course. It works. I can hear stuff that I never thought I could and can identify them instantaneously. Is it work? Yes. Is it fun? Yes. Is it frustrating? Yes. (Sometimes I curse at Mr Burge) Is it gratifying? Incredibly. My complaints are few: I do find that because almost all of it is on piano, it takes some effort to transfer it to other timbres. It has taken me a LONG time to complete, I've still got 5 more lessons. That's not to say it will take you that long, I'm not a naturally talented person. The pluses far outweigh the negatives. The most basic thing in music is the ear. It is imperative that a musician knows what is going on in the music. There aren't too many painters that can't identify basic shapes but lots of musicians that can't identify basic sounds. It is very obvious that Burge is very intelligent and talented. He was able to do what four of my professors were not able to do in four years. Any questions, feel free to e-mail me or post them.