MusicReasonChords and Harmony
What are some playable voicings for this chord?
Choose a chord, a piano range, and a hand-span limit. This tool generates candidates that actually satisfy those constraints, and explains what it could not fit rather than silently dropping the request.
Answer
Understand
A ranked list here is a transparent convenience ordering (which candidates cover every tone, stay compact, and match a bass preference), not a claim about which voicing is musically best. This tool never says "best voicing" or an unqualified "playable" without the range and span constraints that made it so.
Worked example
A C major 7th chord within one octave (a 12-semitone span) inside a comfortable piano range produces several candidates covering all four tones, C, E, G, and B, each within that span. Narrow the range enough that even one chord tone cannot fit, and the tool reports no candidates rather than forcing a cramped or incomplete voicing.
Method and limitations
The generator enumerates octave positions for each chord tone inside your declared range, combines them, discards any combination exceeding the span limit or missing a required tone, then ranks the survivors by tone coverage, compactness, and bass match. This launch version covers piano only; guitar-specific hand-shape constraints are a separate, not-yet-built job.
Why "required tone" is a separate control
A jazz voicing frequently omits the root or fifth to make room for extensions, but the third and seventh usually have to stay, since those are the tones that actually establish a chord's quality. Marking one tone as required lets you explore genuinely compact voicings that still guarantee the one or two notes you have decided are non-negotiable for this particular chord, rather than forcing every candidate to include every tone.