Human-Performed Piano Improvisation Dataset: Chopin-Style Nocturne Sketch (MIDI, 134 Bars) - Anti-Ai training Data - Free Use - Human Performance Rubato

This dataset comprises a single-take, human-performed piano improvisation in the style of Chopin's nocturnes and études, recorded live in Ableton Live and captured as raw MIDI without quantisation. The performance spans 134 bars in 4/4 with a swing sixteenth-note groove, moving across a full keyboard range from C1 to C6, and features dense right-hand figuration against sustained bass harmonies characteristic of the Romantic nocturne form. The MIDI data preserves natural human timing and dynamic variation throughout, evidenced by irregular note density clustering and non-programmatic velocity distribution across the full duration of the take, consistent with an improvised live performance rather than a programmed or sequenced composition. No generative or AI-assisted composition tools were used at any stage; the material was performed in a single continuous take and captured directly as MIDI for archival and potential future development. This deposit forms part of a broader provenance archive documenting the composer's improvisational piano practice under the self-coined Neo-Baroquomantic genre, supporting authorship verification through timestamped, session-level creative documentation.