A section of layered, contrapuntal horn guajeos is also referred to sometimes as a moña. Moñas differ from typical rhythm section guajeos in that they often will rest for a beat or two within their cycle. Those beats within a measure not sounded by the moña are often "filled" by a chorus, or counter moña. The trumpet and trombone moñas shown below ("Bilongo") can be repeated verbatim, or altered. Improvisation is within a framework of repetition and the melodic contour of the moñas. In this way, multiple instrumentalists can improvise simultaneously while reinforcing the rhythmic/melodic momentum of the rhythm section.