# An LSTM-Based Chord Generation System Using Chroma Histogram Representations

arXiv: https://arxiv.org/abs/2405.05240 · HTML: https://mlsanity.com/paper/2405.05240/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 3 of its 12 references that are in the map.
- First posted on arXiv 8 May 2024.

## Builds on (most cited first, 3 of 3)

- [SongDriver: Real-time Music Accompaniment Generation without Logical Latency nor Exposure Bias](https://mlsanity.com/paper/2209.06054/) (2022)
- [Chord Generation from Symbolic Melody Using BLSTM Networks](https://mlsanity.com/paper/1712.01011/) (2017)
- [A-Muze-Net: Music Generation by Composing the Harmony based on the Generated Melody](https://mlsanity.com/paper/2111.12986/) (2021)

## Abstract (arXiv)

This paper proposes a system for chord generation to monophonic symbolic melodies using an LSTM-based model trained on chroma histogram representations of chords. Chroma representations promise more harmonically rich generation than chord label-based approaches, whilst maintaining a small number of dimensions in the dataset. This system is shown to be suitable for limited real-time use. While it does not meet the state-of-the-art for coherent long-term generation, it does show diatonic generation with cadential chord relationships. The need for further study into chroma histograms as an extracted feature in chord generation tasks is highlighted.