UD5 Toolkit
Chord Progression Builder - Online Music Theory Tool
Select a key and build chord progressions (I-IV-V, etc.). Hear them played with simple piano sounds. Great for songwriting inspiration. Local audio synthesis.
Tag: Chord Finder & Scales
3+ toolsRandom Chord Progression - Online Music Idea
Get a random chord progression (e.g., I‑V‑vi‑IV) with a suggested key. Play with built‑in piano sounds. For songwriters.
Piano Chord Finder - Online Visual Keyboard & Notes
Click a root key and chord type (Maj, min, 7th) to see the notes highlighted on a piano keyboard. Learn chords fast.