What chess players know about practice that musicians don't

If you want to know what deliberate practice actually looks like, chess might be the best place to look. Chess players have obsessed over how people get better for a long time, and researchers have measured it more carefully than almost any other skill. What they found applies almost directly to practicing an instrument, and most musicians skip the most important part.

Playing isn't the same as studying

In 2005, a team of researchers led by Neil Charness surveyed two large groups of tournament chess players about how they spent their chess time: playing tournament games, taking lessons, and studying alone. Then they compared those habits to each player's rating.

All of it helped. But one activity stood out. Time spent on serious study alone was the strongest predictor of how good a player was. The grandmasters in the study had put in roughly 5,000 hours of solo study during their first ten years of serious play, nearly five times what intermediate players reported.

Notice what didn't come out on top: playing games. Tournament play mattered, but the players who got furthest weren't the ones who simply played the most. They were the ones who spent the most time alone with the board, working through positions and figuring out where they'd gone wrong.

Musicians have a version of this. Playing through songs you already know is the tournament game. It's fun, it keeps you sharp, and it feels like practice. But it's not where most of the improvement comes from.

The post-mortem

The heart of serious chess study is going back over your own games. After a loss, a strong player doesn't just set the pieces back up and start a new game. They replay the one they lost, move by move, looking for the exact moment it turned.

Coaches who teach this tend to agree on a few things. Analyze your own game before you ask a computer. Write down what you were thinking at the time, not just what happened. Pay the most attention to lost games, because a loss means at least one real mistake is in there waiting to be found. Former world champion Mikhail Botvinnik was known for treating the analysis of his own games as a core part of his training.

Now think about how most of us practice. You play the part. Something goes wrong in bar 12. You stop, play bar 12 again, and keep going. Maybe it goes better. Then the session ends, and that version of bar 12 is gone for good.

A chess player who trained like that would never review a single game. They'd just keep playing new ones, hoping the mistakes would sort themselves out.

Your take is your game

The musician's version of the post-mortem is listening back to a take. Not the best take. The rough one.

That's where the information is. A clean run tells you that you can play the part on a good day. A messy take tells you where it breaks, and why. Was it the shift up the neck? Did the timing start drifting two bars before the mistake, so the mistake was really a symptom? Did you tense up because you knew the hard part was coming?

You can't answer any of those from memory. Your memory of a take starts fading the moment you stop playing, and it tends to keep what you meant to play rather than what came out. A recording doesn't do that.

How to run a post-mortem on a take

Borrowing straight from how chess players study, here's a simple version you can try this week.

Record the take you'd rather forget. Pick a section that's giving you trouble and record a full pass at it, mistakes and all. Don't stop and restart.

Write down what you think happened. Before you listen, jot down where you think it went wrong and why. This is the chess player's "what was I thinking" note. It's useful because it's often wrong.

Listen once without stopping. Play it back all the way through. Don't fix anything yet. Just notice.

Find the turning point. Go back and listen to the bars leading up to the mistake, not just the mistake. In chess, the losing move is often a few moves before the one that looks bad. On guitar, the clam in bar 12 is often a timing slip in bar 10.

Pick one thing. You don't need a full analysis. You need one specific note to carry into the next take.

Compare later. Record the same section again in a week. Put the two takes side by side. Now you're not guessing whether you've improved. You can hear it.

Study alone, but don't practice blind

The research and the coaching advice point at the same thing. Getting better isn't about the total time you spend playing. It's about the time you spend looking honestly at what you just did, figuring out where it went wrong, and going back in with one clear thing to work on.

Chess players write their moves down, so the review is built into the game. Musicians have to make their own record. That's the reason I record my practice, and it's the reason I built RunThrough around recording a take and comparing it with the last one.

The rough take isn't a failure. It's the game you get to study. The tape doesn't lie, and it's the best study partner you've got.