30 percent of your brain’s cerebral cortex is dedicated to visual processing. A paultry three percent is dedicated to hearing. That says a lot. One, it explains why it’s harder to retain the content of an audio book than reading a physical book. It explains why people often say, “I’m a visual learner” (of course you are!).
I think it also hints at why the core skill of improvisation is so difficult. Hearing the harmony played by a rhythm section, imagining musical phrases that complement the harmony, then fluidly projecting those phrases through your instrument with technical skill and grace puts quite a load on that precious three percent.
The Potential for Auditory Enhancement
Musicians have shown that part of the brain called the auditory cortex grows larger. It appears to act much like a muscle that expands with regular use and exercise.
Perhaps we can expand the area of auditory neurons beyond the 3 percent? Is there an exercise that can develop or expand the auditory cortex in order to enable easier and more fluid improvisation? Something that can better connect brain and instrument? Maybe something to pump up those gray matter guns?!
Exercises to Amplify Your Musical Ear
I’ve created some exercises that will give your auditory cortex a workout. Here’s a simple one you can do right now. Sing a random note. Hold it out for a couple of seconds then play it on your instrument. How quickly did you find the note on your instrument?
Here’s another: play Happy Birthday starting on your most comfortable note. That’s a simple tune, right? Now play it with the same ease and flow starting on a low B. Is there a difference?
Playing on your instrument what you hear externally and internally is the type of exercise that rapidly builds connections within your brain. As those connections get reinforced through repetition, something magical happens with your instrument. The resistance of the instrument starts to fade and you begin to more easily find the notes living in your imagination. Improvisation becomes easier and more satisfying.
Here’s an audio track consisting of the harmony of Happy Birthday recorded for one chorus in each of the 12 keys. Just before the start of each new key, you’ll hear a quick synth tone. That tone is the pitch of the first note of the Happy Birthday melody. Hear the note, find it on your instrument, and play the eight-bar melody in the new key.





2 thoughts on “How to improvise more melodically – part 2 of 2”
I really enjoying trying this, and think I did ok! This should be a real help to folks, and even
though I’m just a “symphony” player, working on your ear is always good. It was fun just to listen to….great job Mike!
I don’t think I used the word “just” a symphony player. Sounds like some deep seeded personal issues at work there!
I would love to get feedback from other symphony players. My sense is that they might have a more difficult time than you. After all, you have been known to play some pretty mean jazz, even though I’ll keep that between you and me.