Database of Piano Chords: An Engineering View of Harmony by Ana M. Barbancho, Isabel Barbancho, Lorenzo J. Tardón,

By Ana M. Barbancho, Isabel Barbancho, Lorenzo J. Tardón, Emilio Molina

Database of Piano Chords: An Engineering View of concord incorporates a targeted database of piano chords constructed solely for tune examine reasons, and descriptions the most important benefits to utilizing this dataset to additional one’s learn. The e-book additionally describes the actual bases of the occidental song chords and the impact utilized in the detection and transcription of the track, allowing researchers to in detail comprehend the development of every occidental chord. the web database comprises greater than 275,000 chords with diverse levels of polyphony and with diverse taking part in types. jointly, the database and the booklet are a useful instrument for researchers during this box.

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W. Ellis, “A discriminative model for polyphonic piano transcription”, EURASIP Journal on Advances in Signal Processing, vol. 8, pp. 1–9, 2007. 5. I. M. Barbancho, A. J. Tard´on, “Transcription of Piano Recordings”, Applied Acoustics, vol. 65, pp. 1261–1287, December 2004. 6. M. J. Tard´on and I. 1–12, 2010. 7. M. Barbancho, I. Barbancho, B. J. Tard´on, “SIC Receiver for Polyphonic Piano Music”, in IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011), pp. 377–380, May 2011.

These chords correspond to seventh chords. These chords are commonly used in Western music. In the second group, the chords (Fig. 10b) are composed by the fundamental tone (C, A, Eb), its Major or Minor third, its Diminished, Perfect or Augmented fifth, its Major or Minor seventh, its Major or Minor ninth, its perfect eleventh and its Major thirteenth. These chords correspond to 13th chords, which are typical chords in jazz music. 1 kHz and quantized with 16 bits (standard CD quality). The recordings are stored in 275,040 monaural sound files with a total size of about 54 GB and a total play back time of about 170 h.

In music, as described in Sect. 2, the tonality is the harmonic center of gravity of a musical excerpt. Each tonality or key has a key signature or number of alterations. These alterations can be sharps (#) or flats (b). From the musicians point of view, it is important to code the name of the notes with sharps or flats depending of the key of the musical piece. For example, in a musical piece in C minor, a perfect minor chord is represented by C4Eb4G4. In this case, the perfect minor chord can also be represented by C4D#4G4 (Eb4 is enharmonic with D#4), but it is not its normal representation and, so, it can be a source of error.

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