Chord Lens
SONGS FOR YOUR VOICE. for singers
Move the song to your key, take the singer out for karaoke, or keep only the voice to learn the melody. Start at 01 and work down.
01 / 04 · Your path
Beginner to advanced.
in this order ↓
- 01
Best key for your voice
Find the best key for your voice by ear: sing the highest and lowest lines, step the key a semitone at a time, and keep the one where both ends feel easy.
Beginner · 8 min · Change Song Key - 02
Make a karaoke version
How to make a karaoke version of a song: split it into stems, mute the voices, keep the band, read the words in time and move the key to suit you.
Beginner · 8 min · YouTube Karaoke Maker - 03
Get an acapella
How to get an acapella from any song with an AI acapella extractor: split the stems, keep only the vocals, bring back the harmonies, loop the line.
Beginner · 7 min · AI YouTube Vocal Remover - 04
Learn songs by ear
Learn songs by ear one short phrase at a time: slow it down, loop it, sing it, find it, and use stems to hear the part you play.
Beginner · 8 min · Slow Down Songs
02 / 04 · More for voice
Every other singing guide.
- Voice · Intermediate
Learn harmonies by ear
How to learn harmonies by ear: solo the vocals, find the harmony line under the lead, slow it down, sing it against the chord, then sing it with the band.
9 min · AI YouTube Vocal Remover - Any instrument · Beginner
Find the chords
How to find the chords of a song: find the key, follow the bass, test major or minor, then check your chart against the record with AI YouTube to Chords.
8 min · AI YouTube to Chords - Any instrument · Beginner
Find the key
How to find the key of a song by ear in five steps: hear the home note, test the chords, pick major or minor, then check it with Song Key Finder.
7 min · Song Key Finder - Any instrument · Intermediate
Transcribe a song
How to transcribe a song into a chord chart: set the key and tempo, map the form, count the bars, fill in the chords by ear, then check it at full speed.
8 min · AI YouTube Stem Splitter
Show all 27 singing guides
- Any instrument · Beginner
Chord progressions
Common chord progressions explained: I–V–vi–IV, I–IV–V, ii–V–I, the 12-bar blues and the minor ones, with the chords in C and G and how to hear them.
8 min · AI Chord Finder - Any instrument · Intermediate
Nashville numbers
The Nashville number system explained: chords as numbers in the key, minors, sevenths, slash chords and split bars, and how to see any song in numbers.
8 min · AI YouTube to Chords - Any instrument · Beginner
Transpose chords
How to transpose chords to another key: count the semitones, move every chord by the same amount, keep each chord’s quality, and spell it for the new key.
7 min · Change Song Key - Any instrument · Beginner
Major vs minor key
Major vs minor key, by ear: find the note that sounds like home, test its third, and tell a major key from its relative minor, which shares every note.
8 min · Song Key Finder - Any instrument · Beginner
Chord symbols explained
Chord symbols explained: what m, 7, maj7, sus2, sus4, add9, dim and slash chords mean, the notes in each, and the plain chord to play when one is hard.
9 min · Chord Shapes - Any instrument · Beginner
Worship guide tracks
What a worship guide track is: a voice that counts the band in and calls each section. How teams use one, and how to make one for any song.
9 min · Guide Track Maker - Any instrument · Beginner
Make a chord chart
How to make a chord chart your band can read: what goes on the page, which layout suits each player, and how to print one from any song’s recording.
9 min · Chord Lens Studio - Any instrument · Intermediate
Worship set planning
Worship set planning, song by song: pick a key the room can sing, print a chart the band can read, and add spoken cues so nobody misses a turn.
9 min · Guide Track Maker - Any instrument · Beginner
Chords on YouTube
Chords for YouTube, right on the video: the free Chord Lens Chrome extension shows each chord in time while YouTube plays, with the shape, key and stems.
8 min · Chord Lens for Chrome - Any instrument · Beginner
Rehearse without a band
How to practice without a band: mute your own parts, let the original players fill the gaps, add spoken cues, and fill an empty chair at rehearsal.
8 min · Backing Track Maker - Any instrument · Beginner
Find the BPM
How to find the BPM of a song: count the beat against a clock, rule out half and double time, then check the tempo Chord Lens counts from the beats.
7 min · Song Key Finder - Any instrument · Beginner
Learn a song quickly
Learn a song quickly before rehearsal: map the sections, learn the chord loops, drill the two hard bars slower, set your key and print the chart, in 30 minutes.
8 min · Chord Lens Studio - Any instrument · Beginner
Slow down a song
How to slow down a song without changing its pitch: pick a speed, loop the hard bars, and step back up to full tempo, with the key held where the record has it.
7 min · Slow Down Songs - Any instrument · Beginner
Make a backing track
How to make a backing track from any song: split it into stems, mute the part you play, and play along with the original band, slowed down or in a new key.
7 min · Backing Track Maker - Any instrument · Beginner
Metronome for songs
A metronome for songs that follows the band: click on the record’s own beats, slow it down with the song, then fade the click until your time holds alone.
8 min · YouTube Metronome - Any instrument · Beginner
Chord app for your phone
Chord Lens as a chord app for iPhone and Android: add the Studio to your Home Screen from Safari or Chrome and practise any song’s chords on your phone.
7 min · AI YouTube to Chords - Any instrument · Beginner
Song structure
Song structure explained: intro, verse, chorus, bridge and outro, how to hear where each starts, and how to use a song map to learn a song faster.
8 min · Chord Lens Studio - Any instrument · Beginner
Chord Lens for Mac
Chord Lens for Mac, the chord app for Apple silicon Macs: download it, open it the first time, sign in, and turn your first song into chords and stems.
7 min · Chord Lens for Mac - Voice · Any level
Free vocal removers, compared
Free vocal remover? Chord Lens, Moises, LALAL.AI, Ultimate Vocal Remover and Fadr: what each one gives free, downloads and limits, read from each site.
Checked Oct 2026 - Any instrument · Any level
Chord Lens vs Chordify
Looking for a Chordify alternative? Chord Lens and Chordify side by side: chords in time, key, speed, stems and plans, read from each site.
Checked Nov 2026 - Any instrument · Any level
Best chord finder apps in 2026
Best chord finder app for 2026? Chord Lens, Chordify, Moises, Chord ai, Anychord and Capo compared, plus Swaram, Audelta, ChordU and Chord Tracker.
Checked Nov 2026 - Any instrument · Any level
Chord Lens vs Moises
Looking for a Moises alternative? Chord Lens and Moises side by side: stems, chords, key, speed, apps and free plans, read from each site.
Checked Nov 2026 - Any instrument · Any level
Best stem splitters in 2026
Best stem splitter 2026? Chord Lens, Moises, LALAL.AI, Ultimate Vocal Remover and Fadr: free plans, downloads and chords, read from each site.
Checked Oct 2026
03 / 04 · Singing tools
- Change Song KeyAny key, the capo follows
- AI YouTube Vocal RemoverKaraoke or acapella from your file
- YouTube Karaoke MakerSingers out, words in time
- Song Key FinderThe key and BPM of a song
- Lyrics and ChordsThe words in time, chords on top
- Guide Track MakerSpoken cues and a count-in
04 / 04 · Quick answers
Quick answers.
01How do I find the best key for my voice?
Sing along and move the song down or up a step at a time until the high notes feel easy. Change Song Key moves the song at the same speed, and the key guide in this path walks through it.
02Can I take the vocals out of a song?
Yes. The YouTube Vocal Remover mutes the singer for a karaoke track, and the YouTube Karaoke Maker lights the words up in time.
03Can I hear just the vocal?
Yes. The YouTube Vocal Remover can keep only the voice, for an acapella you can learn the melody and harmonies from.
04Does the band move to my key too?
Yes. When you change the key, the whole song moves with it, so the band plays in your key at the same speed.