Hookpad

Hookpad, developed by Hooktheory, is a sophisticated web-based musical sketchpad designed to streamline the songwriting process through the lens of functional music theory. As of 2026, it remains a market leader in pedagogical composition tools, leveraging its proprietary 'TheoryTab' database—comprising over 40,000 analyzed songs—to power its AI-driven harmonic and melodic suggestion engines. The software uses a unique color-coded interface to represent musical functions (e.g., tonic, subdominant, dominant), making complex theoretical concepts accessible to creators. Technically, Hookpad operates on a robust WebAssembly framework, allowing for low-latency MIDI playback and real-time generation of melodies and chord progressions within a browser environment. Its positioning in 2026 emphasizes 'Smart Assistance' rather than total automation, providing songwriters with AI-generated 'Magic Chords' and melodic phrases that are contextually aware of the current key, mode, and genre. This makes it an indispensable tool for both educational institutions and professional producers who require a rapid prototyping environment for harmonic structures before moving to high-fidelity DAWs like Ableton Live or Logic Pro.