How to tell if you're improving by recording yourself

From the bench, almost every session feels similar. Your attention is on the next note, not on whether bar 3 is cleaner than it was on Tuesday. A recording is how you get out of the piece long enough to hear it. It is also easy to misuse: one take, judged against a pianist you love, on a phone, in a kitchen. That comparison mostly tells you the phone is a phone.

Record the same thing

Pick the loop you are actually practicing. Two to four bars is enough. Play it once. Do not record ten tries and keep the best unless you are choosing a take to send someone. For practice, the ordinary take is the honest one.

Put the phone in the same place each time. On the music stand, or on a table to the right, mic toward the piano, not in your hand. The point is that next week's take is comparable. A closer mic will sound "better" and you will not know if you improved.

Name the file with the date and the bars, or at least keep them in order. A folder of voice notes called "Audio" will not help you in a month.

Listen for three things, in this order

Wait an hour if you can. The take you just played is still mixed up with how it felt.

1. Stops. Where did you hesitate, back up, or wait? Count them. A stop is a gap, not a wrong note you corrected smoothly. Fewer stops in the same bars, at the same tempo, is improvement you can point at.
2. Tempo. Tap along, or glance at a metronome while you listen. Write down one number. Faster is not automatically better. Faster with a new stop is a trade, and you should notice the trade. The useful comparison is: same bars, last week and this week.
3. The notes you meant. Sing what you intended, then play the take. Did the melody notes arrive, in order? This is not a hunt for a polished sound. It is "was that an F, or did I play the F-sharp next door?" Phone speakers hide a lot. They do not usually hide a wrong melody note in a single line.

Write one sentence. "Tuesday: bars 1–4, about 72, two stops, the left hand late in bar 3." Next week, read the sentence before you listen to the new take.

What not to grade from a phone

Tone, pedal, and dynamics are real musical things, and a voice-memo mic is a bad judge of them. Room noise, the phone's compressor, and where you sat all change the sound more than a week of practice will. If you start scoring "warmth," you will chase the recording, not the playing.

Do not compare your take to the album. The album is a different instrument, a different room, and often a different arrangement. Compare your take to your take.

Once a week is enough

Daily recordings of the same loop are fine if you like them. The comparison that tells you about improvement is about a week apart, because day-to-day noise is large: sleep, a stiff hand, a noisy room. Two takes, seven days apart, same bars, same phone spot, is a fair test.

If the later take is the same tempo with fewer stops, keep the tempo and clean the spot that still stops. If the later take is faster and messier, the tempo went up too soon. Go back to last week's number for a few days. That is a decision the recording can make for you, which is the reason to record.

If you want the count done for you

You can do all of the above with a phone and a note. Piano Nudge, in Telegram, measures tempo, steadiness of the note spacing, and stops from a voice note, and on a weekly note it puts this week next to last week. It does not hear tone, pedal, or dynamics, and it should not be asked to. The listening in steps 1–3 is still yours. The number is only there so the sentence you write down is harder to fudge.