Theory-first songwriting tools aimed at musicians who want to understand *why* a chord progression works, not just that it does. [Hooktheory](https://www.hooktheory.com/?utm_source=musicianstack) is a web-based platform built around three interlocking products: Hookpad (a musical sketchpad), TheoryTab (a searchable song analysis database), and a pair of interactive music theory books. Together they form one of the most coherent environments for learning to write music with purpose.
**Hookpad** is the centrepiece. It is a browser-based composition tool that places music theory guidance directly inside the workflow rather than treating it as a separate subject. You build chord progressions using a smart palette that shows you which chords function well together in your chosen key and scale. Melody writing sits on top, with smart guides that highlight notes from the scale and chord tones. From there you can add lyrics, swap between dozens of professionally tuned instrument bands, and adjust mixing before exporting. MIDI export works via drag-and-drop into any major DAW. Sheet music, lead sheets, and MP3 export are all available on the paid tier.
The AI layer is called Aria. It generates chord and melody suggestions that are context-aware, working from the music already in your composition rather than producing generic output. You can ask it to write chords for your melody, write melody for your chords, or generate both simultaneously. It is an optional add-on at additional monthly cost.
**TheoryTab** is a community-maintained database of over 73,000 songs with their chord progressions and melodies transcribed in Hooktheory's notation. You can search by chord progression to find songs that use a specific movement, or filter by genre, tempo, key, and complexity metrics. It is a research tool as much as a reference database, and it feeds directly into Hookpad's chord suggestions.
The **Hooktheory books** (volumes I and II) cover diatonic harmony, borrowed chords, secondary dominants, and melodic theory using pop song examples. Every theoretical point has a live, interactive audio example built into the text. They are sold separately from Hookpad and work as standalone reading on mobile apps.
Hookpad is web-only, designed for tablet, laptop, and desktop screens. There is no dedicated desktop application. The free tier gives you basic chord building and piano sound only. The Standard plan unlocks the full instrument library, MIDI export, sheet music export, extended chords, borrowed chords, lyrics, and unlimited cloud saves. A lifetime licence is available as an alternative to the monthly subscription.
The main friction points users mention: the platform is firmly browser-based with no offline mode, Aria costs extra on top of the Standard plan, and the MIDI export workflow requires dragging files into a DAW rather than a direct plugin connection. Some users report intermittent playback bugs where the transport gets stuck, and template loading can be slow. For producers already deep in a DAW workflow, it works better as a separate ideation environment than an integrated tool.
The closest competitor is Scaler 2, which runs as a plugin directly inside your DAW and has stronger support for modal chords and complex voicings. Hooktheory has the edge for complete melody-plus-harmony compositions and the TheoryTab research database.
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### Pros and Cons
**Hooktheory: Pros and Cons**
| Pros | Cons |
|------|------|
| Theory guidance:<br>Built-in chord logic helps<br>beginners write coherently | Web-only:<br>No offline mode;<br>requires a browser |
| TheoryTab:<br>73,000+ song analyses<br>searchable by progression | AI costs extra:<br>Aria is an add-on<br>on top of Standard plan |
| Export options:<br>MIDI, MP3, sheet music,<br>lead sheet, tabs | DAW integration:<br>MIDI via drag-and-drop,<br>no direct plugin |
| Pricing:<br>Lifetime licence available;<br>free tier to try first | Scope:<br>Ideation tool, not a<br>full production environment |
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### Features
- Hookpad: browser-based chord and melody composition with built-in theory guidance
- Smart chord palettes showing diatonic, borrowed, and secondary chord options
- 500+ lead, harmony, guitar, bass, and drum instruments across 11 band templates
- Melody writing with smart guides, up to four simultaneous melody voices
- Aria AI: context-aware chord and melody generation
- MIDI drag-and-drop export to any DAW
- Export as sheet music, lead sheet, tabs, or MP3
- Lyrics editor with precise note placement
- TheoryTab: searchable database of 73,000+ song chord and melody analyses
- Chord search across TheoryTab by specific progression, genre, key, tempo, and complexity
- Two interactive music theory books (sold separately)
- Chord Crush: ear training tool using real songs
- Classroom tools for music educators
- Freemium with lifetime licence option
