I start with trying to sight-read the piece (badly). Then I usually start at the beginning. Except if I am not secure about being able to learn I might start with the hardest looking part. I usually work on one phrase at the time. But I also take smaller sections (like one measure) if necessary to "teach my fingers". I often first try to play hands together, get an idea of the correct rhythm and how the hands connect. Hands separately if I need to work on the fingering. I alternate between slow and fast practice (my slow isn't always slow enough, but it's very difficult for me to play slow because my concentration fails). While doing it the piece becomes somewhat memorized, but it's not really secure. Only after I am able to get through the piece somehow, I can really start concentrating on details.
After I managed to get through the whole piece like this, I try to get the whole thing together. It's just play (either in sections or the whole piece), evaluate, practice what wasn't good enough, play again, evaluate, practice...Still changing and correcting things, sometimes even fingerings. I still go back to hands separate and slow practice, until I feel it's as good as it can get. If I have trouble with remembering things, I add more "starting points", which means I practice starting from different spots than what I used in going through the piece. This I could go on doing forever, but at some point new pieces take over...
Oh, and in this stage I also record and listen...and often decide that something needs to be changed or notice little mistakes...
This is a (much better) variation of how I used to do it haha

I just played it right away, and the passages that didn't work I just endlessly repeated...I remember when I worked on Rach's prelude op. 3 no. 2 in C sharp minor, and I practised the part where it starts to get fast, and I drilled that thing like over six hours! Sure, I eventually got it, but did I play it with feeling? ...Nah
I recognise that with the evaluation and repeat! That's what I do now, before I even start to play(practise) it, I ask myself "How do I want it to sound? What do I have to do in order to make it sound that way?". I ask myself why I put my hands on the keyboard, and why I take them away. I think very often students just practise for the sake of practice. But those students often find practice boring and dreading labour. But if they just asked themselves, how do I want it to be, and actually do it, instead of just "because of" they could learn a lot!
I usually take one "warmup-round", find the stuff I want to do better, formulate it in my mind, the action(s) I have to take to get there, and do it. When I have arrived at a perfect rendition, I tend to want to repeat that perfect rendition about 3 times, and then I am satisfied

Recording yourself can be a big help there, if you have your "end result" in mind you compare your recording to it, and see what it is you have to do to get to "perfect".
About the concentration with slow practice, that is on the other hand something I am good at

I usually take the fastest note in the passage and assign it one beat on 60 BPM on the metronome. This forces me to be really focused on perfecting it, because it is so easy to lose yourself. I usually see every note(or group of notes) before I play it, as this forces concentration too and engrains the right(or wrong

) notes in your memory. Heavy mental work, but oh so rewarding and fun!

Awesome reply, continue replying pianostreet neighbours
