What a practice log is actually for (it is not surveillance)

Ask a student to keep a practice log and watch what they assume you mean. They hear a timesheet. They hear that someone will be checking, that the number is a grade, and that a bad week is now a documented bad week. Some of them start rounding up immediately, which tells you the log has already failed at whatever it was supposed to do.

The framing is wrong, and it is worth taking apart, because a log is one of the few things in music education that pays for itself in about two weeks.

It is evidence, and the evidence is for you

Musicians are bad witnesses to their own week. The session that felt terrible was the one where you fixed the fingering. The week you remember as productive was four short sessions and a long one spent playing things you can already play. Memory keeps the feeling and throws away the facts.

A log keeps the facts. Three weeks of entries answers questions you cannot otherwise answer:

• Which piece is quietly getting all the time, and which one you have been avoiding since the second lesson.
• Whether your good sessions are long or simply early in the day.
• Whether the passage you have been working since March is getting a minute a week, which is not practice, or a focused ten, which is.

None of that requires anyone else to read it. The value is in having written it down at all, in the same way that marking a fingering in pencil is worth more than deciding on one.

It is the agenda for the next lesson

The second use is a lesson that starts faster. "I did four sessions, mostly on the middle section, and bars 40 to 44 are still falling apart on the way in" is a better opening than fifteen minutes of a teacher discovering the same thing by listening.

That is not the teacher checking up on you. It is you arriving with the information, so the lesson can be spent on the problem instead of on locating it.

What we record

Little, on purpose. A session is a duration in minutes, a date, and optional notes. You can tag it with a teacher or an ensemble, both optional, and a session saved from the score player carries the piece you were playing. There is no mood rating, no star score, and nothing that asks you to grade yourself.

The notes field is where the value accumulates, and the seeded examples in the app are the register to aim for: "Metronome work, 60 up to 76. Lost it at 80 so I stopped there." "Recorded it and listened back. Much less dynamic range than I thought." Those are notes to your future self, and they take eight seconds.

If you practice from an interactive score in the library, the player counts the time while you play and offers to save it once you have more than a minute, so that part is not an estimate. Everything else is typed by you, which takes about as long as unpacking the instrument.

Who can see it

You, and any teacher whose invitation you accepted. Nobody else.

The literal scope is worth stating, because "your teacher can see your practice" is the kind of sentence people fill in for themselves and get wrong in both directions. A teacher you accepted can open your page in their studio and read your ten most recent sessions with their dates, minutes and notes, your minutes and session count over the last thirty days, and your current streak, counted in your time zone rather than theirs. It covers every session you log, not only the ones you tagged with them.

What it is not: there is no feed, no roll-up across a teacher's students, and no notification when you log a session. Nothing is pushed at anyone. A teacher who wants to know how your week went has to open your page and read it, which is the same effort as asking, and about as intrusive.

The teacher tag on a session is not the mechanism. It records who or what the session was for, and the form says exactly that underneath the field, because a control that looks like sharing and is not sharing is worse than no control at all. Leaving the tag off does not hide a session from a teacher you accepted, and setting it does not reveal one to a teacher you did not.

The rule the whole application is built on is one sentence: your teacher sees your practice because you said yes. Before you accept, an invitation shows them nothing at all. After you end the relationship, and either of you can, the reading stops with it.

The consent model, which is not decorative

A teacher cannot add you. They can invite you, and the invitation confers nothing while it sits there. Until you accept, the relationship gives them no access to anything of yours: not your profile detail, not the music a teacher shares only with their own students, not your enrollment in their assignments. Declining closes it, and the pending invitation is not a foot in the door.

After you accept, either side can end it, and access stops when the relationship does. Students leave teachers, teachers stop taking students, and an application that treats the first of those as an unusual event has misunderstood the job.

Two related absences, since a claim about privacy is worth more with its boundaries attached. Ensemble leaders have no view of members' practice: you can tag a session with an ensemble, and that tag is for you. Logging a session sends no email to anyone.

Streaks, without the casino

There is a practice streak on the dashboard, and it is deliberately dull. It counts consecutive days on which you logged something, in your own time zone, with day boundaries computed properly so that a session at 11pm counts for the day you played it and a clock change does not silently break a run.

That is the entire mechanic. No badges, no levels, no mascot, no notification telling you that your streak is in danger. A streak is a fact about your week, and a fact is more useful than a prize.

For teachers

The practical version of all this is in what MakesPerfect looks like from the teacher's side. The short form: ask what the log says rather than whether it was kept, and the moment a log becomes a thing students produce for your approval, it stops being evidence and starts being a story about how the week went.

The feature detail, including the streak arithmetic and what the score player records, is on the practice page.