mixcoacalli.

Headword: 
mixcoacalli.
Principal English Translation: 

a place where court musicians gathered to practice their drums, rattles, bells, flutes, and chants (see Sahagún)

Attestations from sources in English: 

Mixcoacalli... mochi ic moçencauhticatca, in cujcanjme: in jxqujch monequj teponaztli, olmaitl, veuetl, aiacachtli, tetzilacatl, çoçoloctli, teponaçoanj, veuetzonanj, cujcaitoanj teiacanque: ioan in ixqujch tlamantli mâcehoallatqujtl = Mixcoacalli... All this the singers prepared, all that was necessary–two-toned drums, rubber drum hammers, ground drums, rattles shaped liked dried poppy heads, copper bells, flutes; players of two-toned drums and ground drums, intoners of chants, leaders of the dance; and all the properties used in the dance (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 8 -- Kings and Lords, no. 14, Part IX, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1951), 45.