Slow Down or Speed Up Without Changing Key
Practise difficult passages at a manageable speed, then gradually work back towards full tempo.
🎧 Built for musicians who want to practise smarter
TempoKey Studio
Turn Any Track Into a Better Practice Tool
Slow down difficult passages, change key without changing tempo, loop the exact section you need, export your altered track and convert audio formats — all from one browser-based music practice app.
✓ Independent tempo control ✓ ±12 semitone transposition ✓ A–B looping ✓ Audio export ✓ Batch conversion
Explore the Features What's Included?
Eight Tools That Make Practice Faster and More Focused
Instead of fighting with a track that is too fast, in the wrong key or awkward to repeat, TempoKey Studio lets you reshape the audio around the way you actually need to practise.
Change Key Without Changing Tempo
Transpose any track up or down by 12 semitones to suit your instrument, voice or lesson.
A–B Practice Looping
Mark the beginning and end of a difficult passage and repeat only that section until it is secure.
Draggable Audio Playhead
Move quickly through the track and jump straight to the moment you want to hear or practise.
Export Your Altered Practice Track
Render your chosen tempo, transposition and A–B section into a new WAV file you can keep.
Batch Audio Conversion
Convert multiple files between MP3, AAC, ALAC, FLAC, AIFF and WAV without juggling separate tools.
Use Your Own Audio
Load songs, backing tracks, demonstrations, lesson recordings or practice material directly from your device.
Browser-Based Processing
Your practice audio is handled locally in the browser, making the workflow quick and convenient.
Practise the passage — not the problem
Stop Rewinding, Restarting and Fighting the Original Recording
Difficult music often becomes much easier when you can control the recording itself. TempoKey Studio gives you those controls in one place.
✓
Learn fast passages properly. Reduce the tempo without dropping the music into a lower key.
✓
Practise in a comfortable key. Move a backing track or song to suit your instrument or vocal range.
✓
Repeat the hard bit automatically. Set A and B once and keep your attention on playing.
✓
Create a reusable practice file. Export the adjusted version instead of rebuilding the settings every time.
TempoKey Studio
Tempo 75%
Key +2 st
Who is it for?
One Tool — Dozens of Practice Situations
InstrumentalistsSlow down recordings, isolate difficult bars and practise along at your own pace.
SingersTranspose tracks into a more suitable vocal key without altering the speed.
Students Learning by EarRepeat short phrases again and again without constantly grabbing the playback controls.
TeachersCreate slower or transposed versions of material for lessons, demonstrations and student practice.
Band & Ensemble PlayersAdjust rehearsal material and backing tracks to suit the line-up or instrument range.
Anyone Working With AudioConvert common audio formats without leaving the same practice page.
Simple workflow
From Track to Focused Practice in Four Steps
01
Choose Your Audio
Load the song, lesson, backing track or recording you want to work with.
02
Adjust Tempo or Key
Change speed and pitch independently until the track suits your practice goal.
03
Set Your Practice Loop
Drag the A and B markers around the exact section you want to repeat.
04
Practise or Export
Loop the passage in the app or export the altered version for later use.
Dr Declan Plummer
MEET THE CREATOR
Declan is a music teacher, lecturer and an expert in online tuition. He has a bachelor's degree, a master's degree, and a PhD (all in music) and has authored and co-authored in several academic journals and books on music. Declan has been a tutor at the Ulster College of Music for many years, where he specialises in teaching all units and components of A-Level and GCSE Music courses, and music theory (Grades 1-8 ABRSM, Trinity and RIAM boards). He also offers tuition in aural skills, music appreciation and music history.
At the City of Belfast School of music he taught advanced theory and aural skills, and at the Piano Academy of Ireland he delivered lessons in theory and Musicianship. Declan also worked as a teaching assistant at the Music Department in Queen's University Belfast, where he gave lectures and tutorials for undergraduate students who studied modules in music theory and music history as part of their BMus and BA degrees.
Aside from piano, in which he teaches various styles, Declan also plays and teaches Irish traditional music, including the Irish Bouzouki, Tin Whistle, Irish Flute, Bodhrán and Uilleann Pipes. He adopts an AMA (ask me anything!) approach to learning music so email him anytime:
info@topscoremusicacademy.com
TempoKey Studio
Free
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- Slow Down or Speed Up Music
- Change Key ±12 semitones
- A–B Practice Looping
- Draggable Audio Playhead
- Export Your Altered Practice Track
- Batch Audio Conversion
- Convert Between MP3, AAC, ALAC, FLAC, AIFF and WAV
