MIDI Tool / plugin file

Song Cage Melody Rack

Song Cage / $59 / $39 owners

Melody Rack is Song Cage's MIDI effect: sing or play a melody, then fourteen harmony-aware slots write chords and parts. $59, or $39 for Song Cage owners.

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Song Cage Melody Rack MIDI piano roll with sung melody, chords, and effect strips
The Dubspot verdict

The Dubspot verdict

A MIDI effect that hears a melody and keeps every rewrite inside the chords it writes from that melody. Fourteen slots. $59, or $39 if you own Song Cage.

Best for Writers who hum or play a line and want chords, harmony, and parts that stay inside those changes.

Pros

  • Fourteen harmony-aware MIDI effects in one chain
  • Chords writes the progression; every later slot reads it
  • Sing, Keys, pass-through, or import
  • $39 for Song Cage Desktop + Plugin owners

Cons

  • Makes no sound; needs a MIDI-effect slot
  • Trial streams live MIDI; clip drag-out needs a licence
  • No AAX, no standalone

Field notes

Overview

Melody Rack is Song Cage's MIDI effect. You sing or play a melody, it lands on the grid, and fourteen harmony-aware slots work on it. Chords writes the progression. The rest of the rack reads it.

The licence is $59, or $39 if you own Song Cage Desktop plus Plugin. Formats are AU and VST3 on macOS 11+ (Universal) and VST3 on Windows 10+. A 14-day trial starts from a free Song Cage account. Sold direct from songcage.com.

Compared with Cthulhu it starts from a melody, not stored voicings. Compared with Scaler 3 it is a rack, not a harmony workstation. Read the Melody Rack first look.

Technical matrix

Specifications

Type
Harmony-aware MIDI effect
Effects
14 slots including Chords, In Key, Harmony, Bones, Reply, Morph, Arp
Formats
AU + VST3 macOS 11+; VST3 Windows 10+
Trial
14 days, free Song Cage account
Price
$59, or $39 for Song Cage owners

Last verified 2026-09-15

Quick reference

FAQ

How much does Melody Rack cost?

Melody Rack is $59, or $39 if you own Song Cage Desktop plus Plugin. A 14-day trial is available.

Does Melody Rack make sound?

No. It sends MIDI to the instrument on the track. In Logic it loads under MIDI FX.

Do I need Song Cage?

No. A free account starts the trial. The desktop app is optional.

Comparison matrix

Direct competitors

Song Cage Melody Rack vs — head-to-head specs, price, and Dubspot Score.

Cthulhu8.4
Song Cage Melody Rack vs Cthulhu
Compare →
Scaler 38.6
Song Cage Melody Rack vs Scaler 3
Compare →
Iftah Sting
Song Cage Melody Rack vs Iftah Sting
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Adjacent signals

Related plugins

Further routing

See also

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