Url https://omeka-s.grinnell.edu/s/MusicalInstruments/item/3328 Resource class wmi:MusicalInstrument Title iyaalu bata Subject 211.252.12 Contributor Roger Vetter Type Yoruba Format 29 in. length 12 in. diameter of larger head (average) 7.3 in. diameter of smaller head (average) Identifier 6169 Source West Africa Language EN Coverage Nigeria Benin Alternative Title ìyáàlù bàtá iya ilu bata Medium wood membrane - mammal skin lacing - rawhide metal Requires 1 Is Part Of Grinnell College Music Instrument Collection Spatial Coverage Africa Provenance Vetter collection Number of drums comprising instrument for membranophone single drum Shell design for membranophone tubular - conical Number and function of membranes for membranophone two, both for sounding Membrane design for membranophone framed with rigid flesh hoop Membrane attachment for membranophone framed membrane hoop connected by lacing to framed membrane hoop Membrane tension control for membranophone none, tension set at time of manufacture Sounding for membranophone striking with one hand and one handheld beater Sound modifiers for membranophone pellet bell/s indirectly attached to shell Category of Instrument membranophone --