[verroq]

The point is the lessons as a standardised tool work quite well in producing results.

The variation in results is much higher if you go off the well beaten path.

Secondly, if you think learning piano is comparable to programming or art then you are completely mistaken.

Edit- added here since HN doesn’t let you comment anymore if you get downvoted too much.

With programming, the feedback is immediate and accurate. You know if your code does compile. You know if your logic is bugged or if your algorithm is too inefficient. If the code you write doesn’t work, somebody can give you their code to bring you up to speed. This allows you to immediately address your issues.

With piano, (at least in the beginning) you are not qualified to judge if your hand position is right, if your posture won’t give your RSI in the long run, if you are even playing the right notes, if your rhythm is off, if you are reading the sheet music wrong, if your pedal is timing subtly off or if your legato is correct. You can practice for hours on playing the wrong thing. A teacher can help you get this stuff to get fixed. Secondly, unless you started ear training as a child you won’t ever be able to develop absolute pitch. Your ability to discern pitch and listen to the very music you are playing is already at a disadvantage. You’re basically blind and deaf and you have no idea what progress should look like apart from superficial judgments.

[bumby]

As both a crummy programmer and crummy musician, I’d like to hear more about your perspective on how they differ.

[megameter]

I'll chime in with some perspective of my own as someone who has had some formal training in both(private lessons and CS classes).

Music, in and of itself, is pretty simple and natural to create: clap your hands, stomp your feet, sing a little. There's a low "skill floor" on it.

Programming has a much bigger skill floor - syntax, memory management, indirection, and other conceptual forms of knowledge. But once you have the concept, it doesn't matter a great deal what exact things you type if it's implementing that concept successfully.

But music has tradition, and not just one - it's one per instrument, with subsets for different playing styles. When you get classical training(which I did) there's a lot of pedigree built-in to being a "student of so-and-so". You learn technical competence - how to not injure yourself by playing(RSI is a big one but it also occurs with posture, breath control and so forth) - but also to express the music interpretively, a translator who turns notes on the page into a dynamic performance, and this involves both repetition and attention to detail that is suited for coaching. Music can be very athletic at the world-class level!

Over time I've been able to cross over the two worlds - finding ways of programming that are a little more iterative, more like performance - and approaching music from a more theory-and-concepts perspective has helped me understand compositions beyond the surface expression. But the broad differences still remain.