Originally, "aguinaldos" were "villancicos" with strong religious connotations but soon evolved to "coplas" (quartets) and "decimas" (ten-verses compositions) about all kinds of everyday topics. Aguinaldos were played with typical instruments such as the bordonúa, a tiple, a cuatro, a carracho or güiro, a cowbell, barriles de bomba, an accordion, and maracas. With bordonua players becoming more difficult to find, the guitar became a staple accompanying the cuatro. Today, panderos (also known as "pleneras"), brass instruments and whatever makes noise, are used.