The metronome: what it is for, and how not to play like a robot with it

The metronome sat in my app for three weeks before I switched it on. I knew what it was for, and that is exactly why I avoided it: I was sure it would tell me I was playing badly. It did. My first eight bars drifted in bar four and never came back. It was the best week of learning I had had until then.

The click guards the time, it does not steer your hand

A metronome does one thing: it marks equal gaps and never changes its mind. It does not know you are mid chord change, it will not wait and it will not speed up with you. All of its value sits in that stubbornness. If your strum and the click stop landing together, the click is not the one who got it wrong.

What the click will not do is fix your hands. If a bar falls apart because your left hand presses the fret a fraction after your right hand hits the strings, the metronome will show you the mess but it will not clear it up. Tomo Fujita says it plainly: a metronome holds the tempo, it does not repair the coordination between your hands.

Without it, though, you will not hear yourself speeding up. While you play you are inside the piece, and rushing is smooth and inaudible from in there. That is why the books tell you to record four passes and then listen to them, because only from the outside can you hear which way you drift.

What ♩ = 72 actually means

BPM means beats per minute. ♩ = 72 means seventy two quarter note beats in a minute, a shade faster than one a second. Sixty is exactly one a second, and it is the only number worth memorising, because every other one can be measured against it in your head.

The Italian words on sheet music say the same thing, only blurred: Lento 40 to 60, Adagio 60 to 75, Andante (at a walking pace) 75 to 100, Moderato 100 to 120, Allegro 120 to 160. The ranges differ from source to source, so treat them as a signpost, not a rule. Panie Janie sits at ♩ = 96 in our catalogue, and you practise it well below that.

Your first ten minutes with a click: the guitar comes last

The teaching books agree here to the point of boredom, and every one of them tells you to put the guitar down first. Four steps, in this order. Switch the click on and only listen, playing nothing, because that is the step that matters most. Then count out loud, one, two, three, four, and tap the body of the guitar while you keep counting. Your hands go on the neck last of all.

Then three stages, each of them over a few days: one downstroke on every click, then four downstrokes on one chord with a change to the next, and the strumming pattern last of all. One rule outlives all three: the hand does not stop, so if your left hand has not caught the chord, the right one carries on over the strings anyway.

Three exercises that take the handrail away

A click on every quarter note turns into a handrail fast: you hold it and it feels like walking on your own. Three exercises from the books take that handrail away piece by piece, and none of them needs a feature the app does not have.

Click on two and four only. Arithmetic is enough: if you want to play at ♩ = 100, set 50 and agree with yourself that every click is either “two” or “four”. One and three you supply in your head. One of the authors explains it with the white lines on a pitch: you can judge where a player fell because the lines come every ten yards. Take half of them away and you can still judge it, only on your own. There is one caveat: at 60 BPM and below this stops making sense.

Silence. Play eight bars, and after the fourth switch the click off and keep going alone. When the click comes back, it either agrees with your hand or it does not, and there is no room here for “that felt about right”.

Tapping instead of playing. No guitar, on your knee or on a phone screen. The books make a separate exercise out of this and ask for big, slow movements, because small ones lie. It is the one part of rhythm work you can do while queueing at the post office.

The tempo ladder: how much to add, and when

Every one of these books has its own ladder, and they differ in the numbers, not in the principle. The principle is single: you take the next rung when the last one holds, not when another day has passed.

school	start	step	condition
Alexander	60	+8	four recorded passes sound even
Carter	50 or 60	+5 or +10	four clean repetitions in a row
Fujita	40	one click	no mistakes, because one slip means the tempo is too high
Chord Changes	72	+2	eight bars without the hand stopping

All three reject “one more BPM a day” as well: the calendar is not a measure. And here is the one thing the metronome will not tell you, although it sounds like its promise. Slow playing teaches accuracy and memory, but it does not turn into speed by itself. Slow and fast movements are run by different parts of the brain, so the target tempo has to be tried at the target tempo in the end. The ladder is not a lift, it is a way of not rehearsing mistakes on the way up.

Short and daily beats one long Saturday

Ten minutes a day beats eight hours on a Saturday. That sentence has four independent versions in the teaching books and only the numbers differ: five to fifteen minutes in one, fifteen as a minimum and thirty as comfortable in another, ten in a third. The strictest of them tells you to stop after ten minutes even when it has not worked.

There is a harder argument than convenience. In a study from 1994, adults who had never played practised one five finger exercise to a metronome at 60, two hours a day for five days. The motor cortex map for their fingers grew every day, and went back to the start after a weekend off. What counted was practising an intended pattern: the group that played whatever came to mind did not grow.

When the click stops being enough

Our Metronome does three things beyond ticking: an accent, so that “one” is audible, your own strumming patterns instead of even quarter notes, and presets, so that you are not setting the same thing up every evening. That lasts a long time, though not for ever.

When it stops being enough, the Drum Machine takes over, and the reason is practical, not decorative. In a simple groove the kick plays on one and three and the snare on two and four, so drums draw a map of the bar that a bare click cannot. If you cannot hear where “one” is, put drums underneath: it usually shows up straight away.

What confused me

I treated the metronome as an examiner. I switched it on to check whether I could play something yet, and off when the answer was no. I even made a deal with myself: learn the song without the click first, then switch the click on to check. That is backwards. The click is a tool for practising, not for marking, and a song learned without it has to be unlearned later.

The second mistake was worse, because I drew the wrong conclusion from it for a month. I decided I had a poor sense of rhythm. What I had was a technical problem: I was pressing the fret and striking the strings as two separate events, and that delay sounds exactly like bad timing. The metronome showed me this, but it was not the cure.