Good advice. My wife (a pianist and piano teacher) just read the article kindly submitted here and said that that is how she practices. I've heard over the years about how she advises her students, and, sure enough, one of the key ideas is to distribute practice across multiple days each week rather than piling into one lump of time just before the lesson.

After my reading of the article, I have to say that getting a good night's sleep each night is definitely crucial for learning anything challenging. Sleep makes connections and consolidates learning.

The one thing I don't see mentioned in this article that my wife tells most of her students, after learning about it from one of her university music teachers, is how important it can be to analyze a new piece of music through multiple modalities. My wife's university teacher has a book about "music mapping,"[1] an approach to reading musical scores and adding visual notations to them, which is highly individualizable and works wonderfully for helping musicians learn where the music is in a new piece of music. Playing with musicality rather than just memorizing notes is always the key idea.

[1] https://www.areditions.com/books/rs001.html