Beams should therefore not cross beats. Beams should be straight lines, not curves. Beams may be slanted ascending or descending according to the contour of the notes. If beaming eigth notes and sixteenth notes together, sixteenth note beams should always go inside the beginning and ending stems. In the above list, each note duration is one-half the duration of the preceding note duration.
Rests can have various durations as well.
TIES Ties extend the length or duration of a note by holding the note for the value of the two notes that are connected by the tie without a break or breath. Duplets occur in compound time meters. Some music is purely rhythmic such as percussion pieces, some African music, rap music. In simple time, each beat divides normally into 2 parts. In compound time, each beat divides normally into 3 parts.