Half speed.
Same tuning.

The honest part matters most on this page

This tool links tempo and pitch: slow the song and the pitch falls with it, like a record on the wrong speed. For dancers that is a footnote. For guitarists it is the whole question, because you are playing along with the track — and a track that has drifted between notes will fight your tuning.

Slow a song to 85% and it sits about 2.8 semitones flat. That is not "a bit low" — it is between frets. No position on a normally tuned guitar matches it, so everything you play against it sounds sour, and you start doubting fingers that are actually correct.

There are two honest ways out. The first is built into the math and works right here in the browser: 50%. The second is the app's unlinked mode, which slows the tempo while holding the original pitch at any speed you like — 70%, 80%, 90% — and saves the setting per song. This page's tool is the quick version for hearing a part clearly right now; the app is the practice rig for working through a whole solo over weeks.

50% = one octave down = still in tune

Halving the speed drops the pitch by exactly twelve semitones — one full octave. An octave is the one interval that changes nothing about note names: an E is still an E, an A is still an A, every chord keeps its shape.

That is why half speed is special. At 50% the track is not detuned relative to your guitar at all — it is simply an octave lower. You can play along in the normal position and every note you fret agrees with every note in the recording. The solo sounds deep and slow, but it is harmonically the same solo, and your ear can check you against it in real time.

So the rule on this page is short: play along at 100% or at 50%. Use the speeds in between for listening only — mapping the shape of a phrase, counting a rhythm — with the guitar in your lap but not sounding against the track. When you want to play along at 80% in the original key, that is the app's unlinked mode.

What half speed reveals

Fast playing hides its own details. At 50% you can hear whether a note is picked or pulled off, where a slide actually starts, which notes are held and which are ghosted. Many licks that sound impossible at speed turn out to be simple shapes played cleanly — and you only find that out when the recording slows down enough to stop blurring.

Loop small, trust the loop

A solo is not one thing — it is a chain of two-second phrases. Practice it that way.

Set the loop around a single phrase, four bars at most, and let it run. The waveform view makes phrase boundaries easier to spot than scrubbing by ear. Play the phrase against the loop until your version and the record's version stop disagreeing, then move the loop forward. This is slower than running the whole solo and far faster than running the whole solo badly.

If it still sounds off at 50%, check the recording first

One more honest detail: not every recording sits exactly at concert pitch to begin with. Older records in particular can run slightly sharp or flat, because tape machines and cutting equipment did not always hold speed perfectly. If you are certain of your frets and your tuner, and the half-speed track still disagrees with you by a small constant amount, the recording itself may be the reason. That is not something a playback rate can fix; it is a reason to trust your tuner and your ears together, not either one alone.

A note on volume balance

Keep the track slightly quieter than your guitar, not the other way around. If the recording is louder than you, your ear grades the record instead of your playing, and mistakes hide under the original. The tool's volume control is separate from tempo, so you can set the balance once and leave it. And keep the overall level moderate — an hour of looped practice at high volume wears your ears down before it wears the lick in.

Start to finish: learning a solo

1. Drop the song into the tool above. The tempo is already at 50% on this page — exactly one octave down, in tune with your guitar.
2. Find the solo on the waveform and set the loop around the first phrase.
3. Listen twice with your hands still. Hear the shape before you chase it.
4. Play along at 50% until the phrase is clean, an octave up from the track — the same frets you will use at full speed.
5. Jump the loop back to 100% and test it. If it collapses, drop back down; if you want the in-between speeds in the original key, that is the app's unlinked mode.
6. Export a half-speed MP3 or WAV if you want the practice copy with you — the free export covers the whole song, with a short spoken note after the end that you can crop off.

The proper practice rig

You love learning songs by ear? There is a player for that.

Y2K Player is a music player for iPhone and iPad, and for guitar practice it fixes exactly the thing this page has been honest about: it can slow the tempo without touching the pitch. 80% speed in the original key, so you can ladder up through the in-between speeds this web tool cannot give you in tune.

It also saves each song's settings — your practice track reopens at yesterday's speed with yesterday's loop — and gives you loop and trim on a proper waveform, playlists and a library for your whole learn-list, all offline with no account. It even exports video at 1080p over visualizers if you record your progress. Free to use. Pro is one payment — forever.