Frequently named after the ethnic group that was characterized in the lyrics, these humorous songs were often accompanied by non-orchestral, "ethnic" instruments, such as rattles, tambourines, bagpipes, and gourds, while the lyrics mimicked the speech patterns of these groups. For example, villancicos called ""negro"" or ""negrillo"", imitated African speech patterns and used onomatopoeic phrases such as, "gulungú, gulungú" and "he, he, he cambabé!" possibly to invoke a childlike and uneducated stereotype of that marginalized group. Other "negrillo" lyrics, however, offer intriguing fraternal sentiments, such as the negro for Jan. 31, 1677 by the famed villancico poet Sor Juana Inés de la Cruz, which sings "tumba, la-lá-la, tumba la-lé-le/wherever Peter enters, no one remains a slave". Other examples of "ethnic" villancicos include the "jácara", "gallego", and "tocotín."