Experiment 1

Re-harmonize an existing melody in different bands' styles

In this experiment, the system harmonizes the melody of the song "across the universe" from the Beatles with three different bands' styles: Radiohead, U2, and Green Day.

The songs are obtained as tablatures from http://www.gprotab.net, and produced as MIDI files for training by guitarpro software. The decision tree algorithm used here is the J48 implementation in WEKA.

Training Data Set

Band		Nationality	Song		Year	Album
	Radiohead	U.K.	Creep		1993	Pablo Honey
			High and Dry		1995	The Bends
			Fake Plastic Tree		1995	The Bends
	U2	Ireland	City of Blinding Lights		2004	How to Dismantle an Atomic Bomb
			When I Look At The World		2000	All That You Can't Leave Behind
			Walk On		2000	All That You Can't Leave Behind
	Green Day	U.S.	Give Me Novacaine		2004	American Idiot
			Jesus Of Suburbian		2004	American Idiot
			Letterbomb		2004	American Idiot

Re-harmonization of "Across The Universe" by Beatles

Band	Chord Tone Retrieval in Training Set(%)		Chord Tone Determination in Testing song		Song	Learned Tree
	True Positive (%)	False Positive (%)	True Positive (%)	False Positive (%)
Beatles
Simulated Radiohead	96.2	41.4	87.5	59.1
Simulated U2	83.6	9.7	41.7	45.5
Simulated Green Day	89.9	11.7	79.2	77.3

Conditional Probability of Neo-Riemannian Transforms

Radiohead

U2

Green Day

Copyright (c) 2007 Ching-Hua Chuan