18. January 2026 | Free Software | Noizefield
Soft Loop Audio Releases Free Harmonic Echo MIDI Delay

Soft Loop Audio has unveiled Harmonic Echo, a free generative MIDI delay plugin compatible with macOS, Windows, and Linux. This innovative tool diverges from traditional delays by employing music theory to generate evolving MIDI sequences that remain aligned with your chosen scale.
Unique Features for Creative Production
Harmonic Echo is specifically designed for artists looking to create Lofi, Ambient, and Chill textures. Its intelligent harmony feature quantizes generated notes to a selected scale and key, ensuring that every note fits harmoniously within your composition. Moreover, the cascading visualization provides real-time visual feedback, offering insight into falling notes and their velocity, which can be incredibly useful for understanding and fine-tuning your musical ideas.
The plugin also features a polymetric phrasing system, highlighted by its “Hold” parameter, which groups echoes to form complex rhythmic clusters. This ability to manipulate timing and rhythm adds depth and interest to your music, making it an exciting tool for any producer.
Features
- Intelligent Harmony: Quantizes generated notes to a selected Scale and Key.
- Cascading Visualization: Real-time visual feedback of falling notes and velocity.
- Polymetric Phrasing: “Hold” parameter groups echoes for complex rhythmic clusters.
Price
Free (and always will be).
👍 Pros
- ✓ Generates evolving MIDI sequences
- ✓ Real-time cascading visualization
- ✓ Polymetric phrasing for complex rhythms
More info: Soft Loop Audio | Harmonic Echo
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