ChaptersSEQ

SEQ: the word step sequencer

Sixteen steps, each holding a word that speaks in your chosen voice. Type four words, get a robot vocal loop.

Verified for version 1.5.0 · Updated October 15, 2026

SEQ turns SpellSynth into an instrument you can play in time. Sixteen steps, each holding a word that speaks in your chosen voice.

Filling the grid

Tap a step and type what it should say, then tap DONE. Two or more letters is a word. A single letter is treated as a letter and uses the recorded alphabet voice — so you can spell a word out across several steps and then say it whole on the next one. Leave a step empty for a rest.

Playing it

Tap ▶ PLAY. The display shows each word as it fires and the grid highlights the step you're on. CLEAR empties the grid.

Tempo and feel

BPM runs from 40 to 240. Steps land on 1/4, 1/8 or 1/16 notes. FIT stretches each word to exactly fill its step — with it on, words speed up and pitch up as you push the tempo, the way a sampler does. With it off, each word plays at its natural speed and the next step cuts it off.

Which words can SEQ say?

In the app, any word. A SEQ step plays from the 500+ word library when the word is in it, and falls back to on-device speech when it isn't — exactly like Free Play. A step holding a single letter always uses the recorded A–Z bank.

In your DAW

The AUv3 has the same sequencer, following your host's tempo and transport instead of the built-in clock. There, Seq Steps sets the loop to any length from 1 to 16 steps. Two factory presets show both halves of the idea: Robot Chant puts a word on every step, Spelling Bee spells a word out and then says it. A step in the plug-in plays a library word or one that has already been rendered, whether by the app or by typing it into the plug-in once; a word it cannot find shows a ⚠ badge on that step rather than failing silently. More in the AUv3 chapter.

SpellSynth's SEQ screen: a grid of steps holding TYPE, IT, SPELL, IT, SAY, IT, PLAY, IT, the PLAY bar, the 1/4, 1/8 and 1/16 switch, FIT and BPM 120.
SEQ: words as steps, 120 BPM.

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