Does music help you focus while working? A two-week test

11 October 2026 · 6 min read

For some people and some tasks it does, and for others it gets in the way. No general answer will tell you which group you are in, because it depends on the kind of work, the kind of music and the room you are sitting in. What you can do is test it: one week with music, one week without, and the same few numbers compared at the end.

Why the general answer does not help you

Advice about music and focus tends to arrive as a rule: always work in silence, or always put on something instrumental. The trouble is that at least four things change the result, and they are different for everyone.

• The task. Routine work you know well, such as filing, formatting or data entry, often goes along happily with music. Reading and writing are different, because many people find that words in a song compete with the words on the page.
• The music. Lyrics or none, familiar or new, loud or quiet. A playlist you have heard a hundred times asks less of you than an album you are hearing for the first time.
• The room. In a noisy office or a busy home, the alternative to music is not silence. It is other people’s conversations, and music may simply be the better noise.
• The feeling. Music can make a dull afternoon more pleasant. That is worth something, but it is a different thing from getting more done, and the two are easy to confuse.

So the useful question is narrower: with your work, your music and your room, did more of your main work get done?

Set up the test

1. Pick two ordinary weeks. No travel, no deadline crunch, no vacation. They should look alike on the calendar.
2. Week one is the baseline. Work the way you do when no music is playing. If that means a noisy room, the noisy room is your baseline.
3. Week two adds music by a rule. Decide in advance what kind, when, and whether you use headphones. “Instrumental only, mornings, headphones on” is a rule. “Whatever I feel like” is not.
4. Keep everything else the same. Same hours, same desk, same kinds of tasks. If you change two things at once, you will not know which one made the difference.
5. Write one line a day. “Music 9:30 to 12:00, instrumental. Silence after lunch.” This note matters more than it looks, for a reason covered below.

Before you start, name your main work app, the one where the hard work happens. For a writer it is the word processor, for a developer the editor, for an analyst the spreadsheet. That is the line to watch.

What to measure

Four numbers per week are enough:

• Hours in your main work app. The headline number.
• Total hours at the Mac. To see whether the day got longer or shorter.
• Session length in the main app. Long unbroken stretches, or many short ones.
• Time in the music app itself. The cost of choosing, skipping and searching.

Punchcard collects these without a timer. It notices which app is in front through the day and prints a receipt at the closing time you set: the top five apps with the time on each, the rest as MISC, and a day total. A week roll prints on Sunday, so each test week ends with one summary to put next to the other.

There is one thing to understand about how this applies to music. Punchcard records the app in front, and music playing in the background is not in front. An album that plays for three hours while you write shows up as three hours of your writing app, with no mention of the music. That is why the daily note is essential: it is the only record of which hours had sound.

The fourth number works the other way. Every time you bring the music app forward to skip a track, hunt for a playlist or read about the band, that app is in front and the time is recorded under its name. If the music app climbs into the top five on your receipt, the test has already told you something. If you play music from a browser tab instead, that time sits on the browser’s line.

Session lengths come from the CSV export, which has one row per session: start, end, app, idle and seconds. Open it in Numbers, filter to your main app, and look down the seconds column. Then match your daily note against the start times to see which sessions happened with music on.

Punchcard will not tell you whether the work was any good. It records app names, not quality. Add a rough score out of five to your daily line for that.

Tracking is free and does not expire, the CSV export works without a license, and the first two receipts are free. Printing receipts after that needs the license, $9 once.

Read the result

Put the two weeks side by side. One of a few patterns is usually clear.

More main work, same total. Hours in your main app went up and the day did not grow. Music helped under the rule you chose. Keep the rule.

Same hours, better days. The numbers barely moved, but your daily scores went up. That is a real result. Music is making the work more pleasant without costing output, and that is a fine reason to keep it.

Shorter sessions, more time in the music app. The music became a second task. The usual cause is choosing: every few songs you went looking for the next thing. Before giving up on music, try one fix: pick a single long playlist or album before the session starts and do not touch it. Then test again.

Good for some tasks, bad for others. Your notes show that the routine days went well with music and the writing days went badly. That is the most common useful result, and it turns into a rule by task instead of a rule for everything.

One caution: a week of each is a thin sample, so treat a narrow difference as no difference. If the music week started badly and ended well, a third week will tell you more.

Turn the result into a rule you can keep

A finding only helps if it becomes a habit. Write the rule in one sentence, as specific as the one you tested: “Instrumental for spreadsheets and mail, silence for drafting.” Then remove the decisions around it. Keep the same playlist for work so that choosing music never becomes the first task of the session, and start it before you open your main app.

If the test came out flat, nothing was wasted: music is a comfort choice for you, not an output one. How to tell if a productivity change actually worked has the general method behind this test, and How to measure deep work without a stopwatch goes further into session length as a measure.

Questions

Does it matter whether the music has lyrics?

For many people it does, especially for reading and writing. You do not have to take that on trust: run one week of each and compare the session lengths in your main app.

My office is loud. Is silence a fair baseline?

No. Compare music with what you would really have without it. If the true alternative is a room full of conversation, that is your baseline week, and music only has to beat that.