Julián Villegas Michael Cohen Synæsthetic Music or the Ultimate Ocular Harpsichord. 523-527 2007 CIT http://doi.ieeecomputersociety.org/10.1109/CIT.2007.168 conf/IEEEcit/2007 db/conf/IEEEcit/IEEEcit2007.html#VillegasC07