Tuner, metronome, and the part nobody practises
Practice apps divide into four jobs that people constantly confuse. Tuning and timing are measurement problems, and a phone does both better than the dedicated boxes it replaced. Reading music and chords is a library problem, solved by whoever has the largest catalogue. Slowing a recording down is a processing problem, and it is the most underused tool in the list. Teaching is the fourth, and it is the one where an app can only hear whether you hit the note, not whether you played it well.
The four jobs, and how well a phone does each
| Job | What the app does | How good the phone is at it |
|---|---|---|
| Tuning | Listens and shows how far off you are | Excellent, better than a clip-on tuner in a quiet room |
| Keeping time | Clicks, subdivides, changes tempo | Excellent, and it can ramp the tempo for you |
| Reading chords and tabs | Scrolls a chart while you play | Very good, limited only by the catalogue |
| Slowing a recording | Changes speed without changing pitch | Very good, and the fastest way to learn a solo |
| Ear training | Drills intervals, chords, rhythm | Good, and genuinely the thing most players skip |
| Teaching technique | Listens and scores what you played | Limited: it hears pitch and timing, not tone or hand position |
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What to install for each job
The tuner most guitarists end up with. Fast, forgiving of a noisy room, and it covers alternate tunings and a few other stringed instruments.
A chromatic tuner that shows cents rather than a happy green tick, which is what you want for anything that is not a guitar.
Clean chromatic tuning with a clear needle and no account. A good default for wind and brass as well as strings.
Tuner and metronome in one app, with a practice timer and a recorder. The most practical single install for a daily session.
The metronome to beat: subdivisions, accents, tempo ramps and setlists, with a free tier that covers ordinary practice.
For odd time signatures and gradual speed changes, which is where the simpler metronomes run out.
The biggest chord and tab catalogue there is, with autoscroll. Much of it is user submitted, so check a second version when something sounds wrong.
Tabs that play back with the track and highlight the bar you are on. The clearest way to work out what a part actually is.
Listens to a track and produces chords for it. Right often enough to be useful and wrong often enough that you should trust your ears over it.
A toolbox rather than an app: chord shapes, scales, a tuner, a metronome and a circle of fifths. Dense, and very deep once you learn where things live.
A lighter chord and tab reader with offline storage, for practising somewhere with no signal.
Sheet music that plays back, with instrument parts you can mute. The one for anyone reading notation rather than tab.
Ear training done properly: intervals, chords, scales and rhythm dictation, with a structured path through them.
The stricter alternative, built as a graded course. Ten minutes of this a day changes more than an hour of scales.
Separates a track into vocals, drums, bass and the rest, so you can mute your own part and play along. Check what the free tier allows before planning around it.
Slows a recording down without dropping the pitch, and loops a section cleanly. The single most effective learning tool in this list.
Listens through the microphone and scores what you played. Good at keeping a beginner going, and a subscription once the trial ends.
The same idea for piano, and the better structured of the two for absolute beginners. Also a subscription.
Sheet music that waits for you to play the right note, with real recordings rather than synthesised ones. Paid, and the gentlest of the three for adults.
Twenty minutes that actually helps
- Tune first, every time Practising against a flat instrument teaches your ear the wrong thing. Thirty seconds, before anything else.
- Five minutes of something slower than you can play it Set the metronome below the speed you manage, and only raise it when the passage is clean twice in a row.
- Ten minutes on the piece, in sections Loop the four bars that go wrong rather than playing the whole thing and hoping. This is what the speed changer is for.
- Five minutes of ear training or sight reading The part everyone drops, and the part that separates people who can play from people who can play one song.
- Record the last run and listen back once Nothing exposes timing like hearing it. Any recorder will do, and the phone is already on the stand.
- Whether the note was in tune
- Whether it landed on the beat
- Which note you played
- How long you practised
- Your hand position
- Tone and dynamics
- Tension in your shoulders
- Whether the fingering will work at speed
Tuner, metronome, a speed changer and ten minutes of ear training. The teaching apps are a bonus, not the foundation.
Frequently asked questions
Is a phone tuner accurate enough?
For everyday practice, yes. In a quiet room a phone tuner resolves a few cents, which is finer than most people can hear. A clip-on pickup still wins on a loud stage, because it feels the instrument rather than listening to the room.
Do the listening apps work with an acoustic instrument?
They do, through the microphone, and they are noticeably less reliable in a room with other noise in it. Electric instruments through an interface are more accurate but need hardware the app cannot supply.
Can an app replace a teacher?
It can replace the part of a teacher that counts you in and tells you the note was flat. It cannot see your hands, and that is the half of early practice that stops bad habits forming.
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