I've always been jealous of musicians born with perfect pitch. Able to effortlessly name any note or tone by ear seemed like the best tool you could get as a musician and engineer. Was there a way to learn perfect pitch if you weren't born with it? The answer appeared to be no, since it's a genetic mutation. However, I've discovered a technique that's helped me achieve the next best thing.The idea came when I was introduced to a violinist that could blindly name every note I was playing on my keyboard. When I asked her if she had perfect pitch, her answer was quite unusual:“Actually, I don't. I've just played my instrument for so long that I remember how each open string sounds. From there, I just use relative pitch to figure out the other notes.”That was it! Instead of trying to remember every single pitch, I simply had to lock my brain onto a few notes. And then use intervals to figure out the nearby pitches.Now this is all great if you're a musician transcribing pieces, but how can it help you as an audio engineer?The concept is the same. You will need to memorize a few frequencies, then try to identify if what you are hearing is above, below or equal to the memorized frequency boost. A good way to understand the exercises is by sharing my typical thought process:An instrument is ringing at 5K:“I know how 4K sounds, but this seems to be little bit higher, it must be around 5K”Assuming you have practiced with the basic TrainYourEars exercises, you will have a head start since this training is based around the octaves: 64, 125, 250, 500, 1K, 2K, 4K, 8K and 16K. From there, we will progressively add frequencies both above and below.I've separated the exercises into bands. This will help you memorize the frequencies of reference faster, as they will show up more often. If you're feeling confident you can skip directly to the full band section.This is not an easy exercise, but has the potential to be extremely rewarding. Start with pink noise and try to reach 95% before moving to the next exercise. Once you complete all the exercises with pink noise, take a break and try again with one song you know really well. After a month of doing just 100 quizzes a day, my accuracy jumped from 50% to 96% on 1/3 of all octaves. You can do it too!Best of luck!-Karél