Dyads and User defined chords

Changeling Sequencer 1.4 is available in the App Store today!

It’s been a while since 1.3, and I blame the developers of Rocksmith for that 😉

Seriously fun & addictive, but anyway:

This release of Changeling Sequencer brings two new types of chords you can select from the Chord dial.


The Dyad chord type adds the following voicings:

  • Root + Third
  • Root + Fifth
  • Root + Seventh
  • Rootless shell voicing: Third + Seventh

If you still feel that you are missing chord options the following feature might be for you!


The User chord type adds 5 voicing options that you may configure yourself!

You can do this in ‘edit mode’. Edit mode is activated by toggling the edit icon next to the keyboard lock. This icon is only visible when ‘user’ is selected as chord type.


After you enable edit mode, the keyboard scrolls to the middle root, and the scale degrees that are part of the user defined chord will be highlighted. You may toggle any scale degree on or off by touch (even the root note), as long as one scale degree remains part of the chord. It’s also possible to change the chord definition during playback of a recorded sequence, in order to find a chord that sounds right.

Have fun! And please send any support questions, feedback and/or feature requests to changelingsequencer@gmail.com



DJ/Producer Maxime Dangles created a Max4Live patch for Changeling Sequencer, and emailed it to me!

 I made that for fun and to improve my max/msp knowledge.

The patch allows you to control and record parameter changes from Ableton Live.

But I guess it’s also convenient for Live users with several control surfaces because with this you can configure a fixed CC MIDI mapping from Live to Changeling.

You can download the patch here.

Thanks Maxime!

In goes the MIDI

Changeling Sequencer 1.3 is available in the App Store now!

As some of you have requested after the first version was released, I have added a few ways of controlling Changeling Sequencer from an external midi controller.

In Diatonic mode:

The white keys on your physical keyboard correspond with the on-screen scale degrees; C = I, D = ii etc. The black keys are remapped to the serve the following functions:

  • Db: cycle scale down
  • Eb: cycle scale up
  • Gb: cycle root note down by the configured ‘modulation interval’ (default is semitone)
  • Ab: absolute root note change, the following key you press will be the root note
  • Bb: cycle root note up by the configured modulation interval

In Gated Input mode:

All midi notes that are not part of the current scale are discarded. This can be used for importing existing midi sequences into a pattern from an external midi sequencer/player.

When the Trigger screen is active in Changeling Sequencer:

Midi notes can be used to trigger patterns, the default mapping starts at midi note 48

Triggers are added to the queue unless the velocity is larger than 100, then they will change the pattern immediately.

You may use ‘midi learn’ to assign midi CC’s to the available parameters.


Forthinking, Vol. 2

This is awesome!
Jeff McLeod pointed me to a new recording of his:

I used Changeling on everything to control my synths (Voyager and Fizmo) and other apps (Molten Drum & Magellan). Every track on Vol. 2 features Changeling! Great fun, and it really allowed me to build all of these sounds.


Free Download!

Find more of his music on www.jeffmcleod.net

Changeling sequencer 1.2 released!

In response to your feedback of the last version Changeling Sequencer is now playing a lot nicer with other apps. This includes MIDI clock sync.

In addition, version 1.2 contains two new big features: Trigger mode and Tracks mode.

Trigger mode

  • assign/unassign sequences to one of the 16 pads with a longpress gesture
  • trigger a sequence instantly by tapping an assigned pad
  • add a sequence to the queue by swiping upwards on the pad
  • remove a sequence from the queue by swiping to the left on the queue
  • toggle the queue loop

Tracks mode

  • switch instantly between tracks, by tapping the track number
  • mute and or solo tracks, toggle multiple tracks with one swipe!
  • change the assignment of midi channels by tapping on the selected track number
  • split chords of one track across different midi channels,
  • by assigning a root midi channel that is different from the main channel.
  • activity indicators for each track

To complement these two new features a ‘clone’ button was added to the sequence browser, so you can make variations of entire sequences fast and easy.


Jupiter Mozart Variations

Awesome to see Changeling Sequencer 1.1 in action on the first day!

This video was posted on YouTube by nakanosyun.

Thank you very much nakanosyun!

This is really interesting sequencer. I tried changing from Mozart’s famous phrase. You can also play external synthesizers via MIDI.


Changeling sequencer 1.1 is now available in the App Store!

Included are a lot of the features that have been requested in your reviews and emails:

  • Quantization
  • MIDI export by e-mail. The MIDI export recording is started by touching the play button in idle mode. Touch the stop button, and the export button will light up.
  • Multiple undo and redo, for a more robust saving experience
  • Custom soundfont (also for the people that think the default sound is not loud enough :-))

But the big bonus in this version is the new Tracks feature, and all the stuff that comes along with it. I’m pretty pleased with how this is turning out.

You now have 16 layers per sequence available, each one is tied to a MIDI channel (for now). Switch between tracks directly by using the tracks button, or cycle through them by swiping up and down the pattern area. You will see the active color change, also the channel number will update next to the sequence title.

Each track can be configured with its own set of parameters. New basic workflow: start out with recording melody line, transform it to a chord progression, switch to another track in playback mode, start improvising a solo until you hear something you like. Switch back to record mode (while continuing to loop). Hit some keys, undo and redo until you are satisfied.

By default all tracks share the same scale and root note. But you have the option to lock (and unlock) a root note and/or a scale for individual tracks. Try this by doing a longpress gesture on the ribbons, locked steps will be marked by a ‘*’.

This is a pretty cool feature, for it allows you to do a couple of things.

  • Improvise like a (basically) trained Jazz musician
  • Fix patterns to external channels that shouldn’t change midi notes, such as drum tracks.
  • Play out of tune, so use with moderation 😉 But it’s fun to find out what works together and what doesn’t.

Okay, I’m looking forward to hearing new feedback. Hopefully it’s as constructive as with the first version, so that I can continue to improve Changeling Sequencer with your help!

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changeling sequencer in action

http://wwww.apps4idevices.com created this movie, thanks guys!

Changeling Sequencer allows you to record a simple melody (monophonic) and to change all recorded notes in various ways. (Scales, Root’s note, Transition & Arpegiator). This App is well done and you can use it as a MIDI controller too! A Super App!


First week – Thank You!

Wow! A BIG thank you for being the first to give Changeling Sequencer a shot.

Especially for the people who made the effort to write a review. Let me give you an overview of the feedback I have received so far:


This is awesome! Looking forward to updates. – ★★★★

by David Shamban
I’ve been looking for something just like this app for a real long time, a theory familiar app that can help guide the composition process with a little chaos to it.

The app is a little raw, particularly the saving mechanism, it’s really easy to overwrite something you made. There’s no way to duplicate either. It’d be great if the user was able to email a midi file. If this is addressed A+!


Vielversprechend! – ★★★★★

by nectardetector – Version 1.0 – Mar 10, 2012

Das ist eine richtig interessante App – gut durchdacht und ansprechend gestalted. Hoffentlich wird sie weiter entwickelt – mit mehr Einstellungsmöglichkeiten und Mid-Export.

Nice – ★★★★★

by Jöschi – Version 1.0 – Mar 7, 2012

Sehr nützlich, schlicht und übersichtlich.


I like it very much, but.. – ★★★★

by rafael_ollero – Version 1.0 – Mar 8, 2012

Need an update: to Save a recording, with tempo, chord, voicing..Data. Not create automatic recordings, I wan to crate by myself. Send midi file by mail. Thanks.


Interesting but not enough …. . – ★★

by zilonlazer – Version 1.0 – Mar 7, 2012

Interesting but not GOOD enough …. Where’s the VOLUME ??? and why It only sounds on the I-PAD 2 speakers ??? When I plug It to outside speakers … NADA – NOTHING – SILENCE …. I don’ t think I’ ll jam with It with a microphone near the I-PAD speakers neither ( LoL ) …. For 5 bucks … I should have some SATISFACTION ( like the song says ) . So BACK to the ” DRAWING BOARD ” my Dear(s) … and fix It so we can plug It to an AMPLIFIER and CRACK IT to the MAX !!! . Cheers . Z


Oh no – ★

by OooOooMrPeasley
Does not play in background…bit of an app flipping nightmare when recording. Also would be nice to be able to work on voices in other apps..whilst sequencer is playing. Needs background play mode!!!!……another money upfront app disappointment!


Jazzy!! – ★★★★

par Lotche
Pas mal du tout!
Permet de creer tres facilement des progressions d’accords.
Ca rend effectivement “trés Jazzy” et c’est plutot ce que je recherchais dans l’acquisition de cette app.
Il manquerai juste une quantification à l’enregistrement et une entrée Midi, ce qui je l’espère fera l’objet d’une prochaine mise à jour!

utile – ★★★★

par Matthieu FOURNIER
bonne appli qui s’avere tres utile pour tester diverses progressions d’accord et les utiliser par la suite. le rendu est tres jazzy mais c’est aussi un tres bon point. un petit bemol, pas de quantification et peut etre le nombres de modes dispo.

It’s a great feeling to read these constructive reviews! Even the low ratings contain really good feedback.

This is a real confidence and energy boost for further development, exciting!