The MCASL Project aims to share, visually and sonically, a sample of the large pre-Columbian era sound-producing artifacts collection from Mesoamerica and Central America housed at the Royal Museums of Art and History (KMKG-MRAH), Brussels. The development of this audio/data library is part of Jean-François Brohée's doctoral research, funded by a FRESH grant of the F.R.S.-FNRS.