Progress and Observations with APA:
- Repeating levels makes the following levels easier. For example, repeating levels 110-120 for a week will make 130-140 significantly easier to pass versus rushing through 110-140. So the results of training aren't confined the levels you train on.
- Training on one particular pitch helps with all the rest. I just unlocked the second egg yesterday, and today I blew though levels 1-40 in 25 min. Levels 1-40 on the first egg took several days to complete.
- The "ringing" effect of having a pitch resonate in your ear after APA training has gone away. In the beginning, the ringing was quite prominent. As I've moved up the avenues in APA, what I perceive as the target chroma part of the sounds I hear has gotten smaller and smaller and smaller. There is no ringing anymore. And I can understand why it's hard to sing a pitch for a perfect pitcher. It's not the repetition of a tone, like hearing a C and singing it back. It's creating a tone with your voice at a particular pitch, which is just a tiny characteristic of an overall tone. Chris described it as "wrapping your voice around a sound" in his research. That's a fairly good description of the experience.
It's certainly gotten easier to progress levels in APA with new target pitches. I plan to finish the second egg about two weeks from when I first unlocked it. One of the challenges facing me is that I have a ton of energy I'm willing to spend pursuing perfect pitch, but I don't know where to channel it. At the beginning of this calendar year I realized it would be of service to Chris if I'm at the forefront of his ear training technology. This way, I can try out any new training he comes up with immediately and make observations, reducing the lag time it would take for himself or others to work through APA. Also, if a process that successfully teaches perfect pitch is developed, we'll only know once someone has used it learnt perfect pitch with it -- I'll be that "guinea pig".
Aside: I'll write long posts/questions because I feel I must do SOMETHING. And there just isn't a clear path to obtaining perfect pitch right now, so there's not much I really can do...
Questions for Chris:
One of the challenges, as I see it, is that we must create distributions of chroma. As is, APA helps an individual isolate one discrete point on the chroma spectrum -- one for each colored egg. So playing on the A-pitch (440 Hz) egg will allow someone to hear the 440 Hz chroma after weeks of practice and advancement, by observing and comparing 440 Hz within different surrounding sounds and timbre. To model the loci learning process, a player needs to observe chroma surrounding A-440 in a normal distribution. How do we get them to hear surrounding chroma without creating another 150 lvls just for 441 Hz, 439 Hz, 445 Hz, 435 Hz, etc. ?
Put more simply: If the A-pitch egg plays 440Hz, the player will learn to hear the 440Hz chroma. Somewhere along the way in the A-pitch training, sticking a 445Hz tone into an egg won't get them to hear the chroma of that tone... Will it? Seems like perceptual differentiation with 445Hz may be necessary apart from differentiation with 440Hz.
aruffo wrote:1. Chroma isolation is required to make an absolute judgment of musical frequency.
This ability seems to be what's lost after the supposed critical period. When a child is naive about what he's meant to be listening for and how he's expected to interpret music, using absolute chroma to interpret musical sound could be no more difficult or peculiar than listening for traditional tonal relationships. An adult has learned to integrate and ignore chroma to make relative pitch judgments.
Absolute Pitch Blaster, by a perceptual differentiation strategy, teaches chroma isolation. One down, two to go.
If for children:
Chroma Isolation + WHaP == Perfect Pitch (including categorical chroma perception)
Chroma Isolation + Eguchi == Perfect Pitch (including categorical chroma perception)
Why for adults:
Chroma Isolation + WHaP =/= Perfect Pitch or Categorical Chroma Perception
Chroma Isolation + Eguchi =/= Perfect Pitch or Categorical Chroma Perception
Observations apart from APA:
In my months working on my first egg, I noticed my microwave beeps a C pitch when its buttons are pressed and when it finishes nuking some food. The C pitch that it plays has always been a little harder for me to hear than the Cs in APA (hearing the chroma, that is). Up until a couple days ago, I wrote off the issue of my not being able to hear the chroma clearly as having to do with the timbre. The timbre of the microwave is more obscuring than the APA timbres.
I've now revised my thinking. The C that the microwave makes isn't a perfect C. I always noticed this a little. It was a little "off" from the C I'd hear while playing APA. Before writing this post, I just verified with a tuner that it is in fact about a quarter-tone flat. My thinking now is that perceptual differentiation lets you extract shared characteristics from sound. Because the eggs you color in all share the exact same pitch, that becomes the characteristic you perceive. If the microwave sounded while playing APA, however, the C wouldn't be as easily perceived because it isn't exactly the same characteristic. It's just a highly similar one.
So issues with hearing pitches outside of APA may not be a timbre issue (it may also be a timbre issue, but I don't know) but an issue with categorical perception. A quarter-tone flat C isn't the same pitch as an in-tune C to me yet. It's just a highly similar chroma.