MidiSlayerDownload

Roadmap

A piece still being written.

Every release so far, and what comes next. Updates within v1 are free.

Hear what comes next

Also coming

plannedMore lesson stages
Six more stages after Beginner, all the way to advanced reading, taught the same way: one idea at a time, played on your keyboard. They come with the full version of MidiSlayer.
exploringMidiSlayer on Android
Android tablets are something we are looking at, not a promise. If it would make the difference for you, tell us.

The piece so far

Every release

The same notes you'll find in the app. Every addition, every refinement.

  1. Bar 12

    v0.12.0

    Latest release

    Learn to play, from the very first key

    • Interactive lessons. The Beginner stage is eleven short lessons, from finding C to reading both clefs, with your hands, a steady beat, rests, sharps and flats, and soft and loud along the way. One small idea at a time, something to play straight away, and it listens to every note. Stuck? It names the note, then lights the key. Beginner is free, and more stages are on the way, with the licence.
    • The Beginner check rounds off the stage. No help at all, and it counts from the day after your last lesson, so you know it stuck. Four new achievements come with the lessons, and Well Read is yours when you finish the stage.
    • The Handbook, rewritten for someone who knows nothing yet, each page matched to its lesson and starting with Getting started. Pictures on every page: keyboards you can tap, staff examples with the same notes lit on the keys, a Hear it button, and the lessons' own beat line and loudness meter.
    • A Glossary: every word the lessons use, in one plain line. Search it (crotchet and semibreve work too), and jump to the lesson or page that teaches it.
    • Your next lesson waits on Home until you finish Beginner.
    • Show me where. Every Train mode offers to light the key you are looking for, and the black keys that find it, after a miss or five quiet seconds. Nothing lights until you ask, and exams stay unaided.
    • Every note is read correctly. Some bars of Fantaisie-Impromptu and Paganini's Caprice 24 were silently missing and now play in full. Descending melodic minor is spelled right, two-hand scales no longer carry one hand's sharp into the other, and chords and intervals sit on their staff instead of far below it.
    • Siege for beginners. A new Novice watch sends one note at a time, on the staff, white keys first, with longer to read it, and its bosses play their battle themes one note a bar. It is a practice watch: a quarter of the XP, and no trophies or achievements. New players start there. And the Gate is redesigned: cleaner, calmer, and it tells you what each choice means. And a hand's next note stays within a sixth of its last, so no more wild leaps.
    • The on-screen keyboard reaches every note a mode asks for and fits the games' column. The pressed-notes card no longer cuts off notes far above or below the staff, long Scale Patterns runs draw at full size, and the metronome is a little louder.
  2. Bar 11

    v0.11.0

    Practice like you have a teacher

    • Practice notices where you stumble. Miss the same bar three times and it offers to loop it for you. Switch on "Start over on a miss" and a wrong note takes you back to the top, or to the start of your loop. Press R to restart at any time.
    • Scale for this piece. The key your score is in now sits beside its title: tap it and Scale Patterns opens on that scale, ready to drill.
    • Scales with both hands. Play hands together or in contrary motion from the grand staff, with fingering for both hands. Or pick one key and drill just that one.
    • See what you played against what was written. Miss a note and the pressed-notes card shows yours in red next to the right one in green, until you play again. The card can now show both staves, and it stays up after you let go.
    • Harmony Compass, rebuilt. Play with one hand or two (left hand on the root), and it tells you when a voice leaps instead of moving smoothly. Navigate gives you a destination and lets you choose the route. Staff mode writes each chord out to read.
    • Notes are spelled the way the music means them. An E major scale shows sharps, a B major chord is B, D sharp, F sharp, and progressions are written in their key with the key signature. Minor progressions and journeys now say minor.
    • Fairer drills. Key Signatures tells you whether it wants the major or the minor key. Intervals no longer prints the root under the staff, and shows the interval written out once you answer. Note Flashcards puts each note on the clef that suits it.
    • Blitz and Cascade now read both clefs, with a wider range and sharps and flats on Hard.
    • Scale and Arpeggio drills can start over on a miss too, and a wrong note no longer makes the progress line flicker.
    • Scales and the Harmony Compass have new, harder settings, so the top ranks there now ask a little more. Exams you have already taken keep their rank.
    • Better on iPad and smaller screens: the combo meter tucks into the header, long setup rows wrap instead of being cut off, and nothing shifts when you miss.
    • Reset all progress now clears Siege and every score. The account is optional: your licence key already unlocks everything. And on a Mac, an update tells you to move MidiSlayer to Applications first if you are running it from the disk image.
  3. Bar 10

    v0.10.0

    Siege

    • Siege is here, in Games. A tower defence you play by reading: enemies march on the keep carrying music, and every passage you play right fires a shot. Endless waves, each in its own key, seven bosses with battle themes you play bar by bar, and a card to pick after every wave.
    • Between runs, the keep is yours. Spend skill points in the Armoury on upgrades that change how a run is built, check your best wave for every clef and key in the Watchtower, and visit every boss you have felled in the Crypt.
    • A level for everything you play. Every correct note earns XP in any mode, and your level sits on the Dashboard.
    • Exam ranks, rebuilt. A rank now measures points a minute against a par for each mode, so Maestro means the same in every mode. Your old exams have been re-rated on the new scale.
    • 42 new achievements, all of them earned in Siege.
    • On iPad: if the iPad puts MidiSlayer in portrait or a small window, it now asks you to turn back to landscape instead of squashing the screen. Bigger tap targets in Siege, and no tooltips that need a mouse.
  4. Bar 09

    v0.9.0

    MidiSlayer comes to the iPad

    • MidiSlayer now runs on iPad, in landscape, built for touch: the same scores, modes and practice history. Pair a Bluetooth MIDI piano straight from the app, or plug in over USB.
    • One licence on both. Already bought on midislayer.com? Sign in on the iPad with the same email and your licence carries across. Buy on the iPad instead, and you can ask for a desktop key from Settings.
    • Hear my notes. If your digital piano has its own speakers, tell MidiSlayer not to play your notes as well. It asks once when you first play, and you can change it in Settings. The metronome, playback and the band keep sounding.
    • The Session stops paying for note spam. The combo builds on chord notes landed on the beat, hammering one note earns nothing, and a solo with fewer than four different notes tops out at a C.
    • The on-screen keyboard now sizes itself to the window instead of assuming a wide desktop.
    • Small fixes to licence handling, settings and touch layouts.
  5. Bar 08

    v0.8.0

    The Session gets a band

    • The Session has a band now. Real drums and a double bass count you in, play a groove (straight, swing, ballad or bossa), listen to how hard you play, and end the tune with you.
    • The band plays bass and drums only, so your notes are the harmony. If you would rather hear the chords, turn on vibes or piano in the setup.
    • Four new tunes to jam over: a 12-bar blues, a jazz blues, a minor blues and a modal vamp. Or set it to endless and it loops until you stop.
    • The keyboard on screen now lights up the notes that fit the chord you are on, and changes as the chords change. Chords that step outside the key light up their own notes.
    • While you play, a bar sweeps along with the beat, and just before each change a line tells you which note to land on.
    • The combo builds over the run, the way a solo does. Resting does not lose it. Only a whole bar without a chord note cools it down.
    • When you finish, the results say why you got that grade, show your best on that tune, and point at one chord or note to work on next time.
    • Hear your take: play your solo back over the band.
    • The little box that shows which notes you are holding can now be turned off, set to names or a staff, and moved to either corner. It is in Settings, under Practice.
    • Your best score on each tune now backs up and syncs with everything else.
  6. Bar 07

    v0.7.6

    A new look, and steadier under the hood

    • A new MidiSlayer mark and wordmark, drawn the Monoglyph way. You will see it in the title bar, on the icon and on midislayer.com.
    • Every release is now put through its paces on real Mac, Windows and Linux machines before it reaches you, including updating over an earlier version with practice history in place.
    • If your keyboard disconnects during an exam or a timed game, the app pauses and picks up when it is back.
    • Backups restore with your progress totals intact.
    • Sign-in details are stored more securely, and switching accounts asks before combining history.
    • Small improvements to notices, wording and stability throughout.
  7. Bar 06

    v0.7.5

    Nothing fails quietly any more

    • Fixed: if a Grand Piano sample failed to load, the piano stayed silent for the rest of the session with no warning. It now tells you, tries again on your next note, and plays as soon as the load succeeds.
    • Fixed: in the demo, once you dismissed the unlock prompt on a locked piece, your keys were ignored without a word. The lock bar now answers every note, and the prompt comes back only after a pause.
    • Fixed: if an update failed to download or install, the banner simply vanished. It now says what went wrong and offers to try again. Your current version keeps working either way.
    • What's New opens on the newest release; earlier ones sit behind Read more.
    • The Windows installer now names Monoglyph Ltd as the publisher.
    • Terms and privacy policy updated, dated 5 September 2026.
    • Small fixes to licence handling and settings storage.
  8. Bar 05

    v0.7.4

    One title bar, and a keyboard that knows its size

    • Fixed on Windows: the app showed a native title bar stacked on top of its own, with two sets of window buttons. One bar now, the app's own.
    • New: tell MidiSlayer how big your keyboard is by pressing its lowest key, then its highest. It is a step in setup, a button in Settings under MIDI Device, and a Detect button beside the on-screen keyboard. The keyboard on screen and everything the app asks you to play stay within your keys.
    • Both came from user feedback. We are listening, and we will keep making the app better with you.
  9. Bar 04

    v0.7.3

    Faster to the ear

    • Every note sounds sooner. We trimmed a sliver of silence from the front of each Grand Piano sample and removed a small built-in delay from the output stage, together about a sixtieth of a second off every keypress. It reads tiny and feels immediate.
    • Graded Reading now deals the raised seventh in minor keys from Grade 1, exactly where the ABRSM parameters put it.
    • New in Settings, Soundbank: an honest note that a digital piano's own built-in sound always beats any app on latency, ours included.
    • Under the hood, the whole toolchain moved up a generation, including the sheet music engine. If a score suddenly renders differently, tell us.
  10. Bar 03

    v0.7.2

    A quieter quit

    • Fixed: with sync turned on, quitting could show an error and need a second try. It closes cleanly now.
  11. Bar 02

    v0.7.1

    The one-day fixes

    • Fixed: the Practice and Analytics tabs would not open. A security setting broke them in 0.7.0; it is gone.
    • The virtual keyboard now spans three octaves, C3 to C6, and Z or X moves the computer-key octave.
    • Sheet music opens in the paper-white theme by default; if you chose dark, dark it stays.
    • Replay the welcome tour any time from Settings, About.
  12. Bar 01

    v0.7.0

    Welcome to Early Access

    • MidiSlayer is out in Early Access for macOS, Windows and Linux.
    • From here the app updates itself, and every release lands with its notes in this panel.

Written with you

The order is partly yours to call.

Player feedback, folded in fast from the first build onward. Rough edges filed as they surface, and the loudest requests jump the queue.

Tell us what you need