FlowStateLIVE

LIVE VOCAL HARMONY, LED BY YOUR GUITAR

Your Natural Voice. Real-Time Harmony.

Turn your solo vocal into a live harmony performance. FlowState follows the chords you play and the melody you sing, building natural-sounding harmonies around your voice—with low latency and no key to set.

Try the private beta See how it works

iPhone & iPad / Standalone & AUv3

FLOWSTATE LIVEHARMONY ENGINE
FlowState Live AUv3 with two voices and Higher, High, Low, Lower choices in descending order, with independent volume and pan.
Two voices. Your blend. Actual app interface
01

Still unmistakably you.

Your tone. Your phrasing. Your vocal character. FlowState creates harmony from your live voice, with a focus on keeping the warmth and identity of the person singing.

02

The harmony follows the song.

Your melody and guitar chords guide the note choices together. As you move through the song, the harmony adapts around you. Choose a voice above or below; your guitar supplies the musical context.

03

Made for the moment you sing.

Low-latency processing keeps the harmonies responsive while you perform. Shape a phrase, lean into a chorus and hear the harmony as part of your live sound.

PLAY. SING. HARMONIZE.

You know the song.
Your guitar tells FlowState.

You already have your hands on the chords and your voice on the melody. FlowState listens to both, using the major and minor chords you play to guide the harmony notes.

There’s no key to dial in before each song. Pick your harmony voices, start playing and let the music lead.

ONE VOICE OR TWO

A subtle third.
A fuller chorus.

Add a voice above your melody, bring in a lower harmony for depth, or blend two voices for a fuller arrangement. Choose thirds or fifths above or below, with independent volume and pan for each voice.

Keep a harmony tucked under your lead or spread two voices across the stereo field. You decide how much harmony the song needs.

HigherHighLowLower

FIT IT INTO YOUR SET

On its own.
Or inside your live rig.

STANDALONE APP

Your mic. Your guitar.
Your iPhone or iPad.

Plug your microphone and guitar into a compatible audio interface, open FlowState and select their inputs in I/O. The app connects guitar tracking to your vocal harmonies automatically. Listen through your interface and start singing.

The complete harmony setup. No host app needed.

FlowState Live standalone with the I/O control and Higher, High, Low, Lower harmony choices.
Standalone app
AUv3 PLUGIN

Bring harmony
into Loopy Pro.

Add Guitar Listener to your guitar channel and Harmony Engine to your vocal channel, then connect their MIDI routing in your host. Use Loopy Pro’s MIDI Learn to switch harmonies on and off with a controller while you play.

The same harmony engine, inside a compatible AUv3 host.

FlowState Live AUv3 editor with both harmony voices enabled and the new harmony selection order.
AUv3 plugin interface

READY TO PLAY

Bring your voice.
Plug in your guitar.

FlowState’s beta is built for a microphone and guitar connected through an audio interface. Here’s what you’ll need.

Device
iPhone or iPad with iOS / iPadOS 26 or later.
Audio interface
For standalone: at least two inputs and stereo output. Tested with a Focusrite Scarlett 4i4.
Monitoring
Headphones connected to your interface. Built-in and Bluetooth audio are not supported in standalone mode.
Audio settings
44.1 kHz. Start with a 128-frame buffer in your AUv3 host. Standalone requests these settings automatically.

PRIVATE BETA

Hear what your next
chorus could sound like.

We’re inviting guitar-playing singers to put FlowState through its paces. Try it with your songs, your voice and your setup—and help shape the release.

Tell us which iPhone or iPad and audio interface you use, and whether you’ll play standalone or in an AUv3 host.

Ask for a beta invitation

Private TestFlight beta · Invitations sent individually