Suggested Learning Resources
- Symmetrical meters are those where primary beats are evenly spaced throughout the
measure and were the divisions and subdivisions are consistent from beat to beat.
- Asymmetric meters contain beat units of unequal duration. An example would be
the meter of 7/8 . Music with this meter likely has 3 main pulses, with the divisions
of either (2+2+3) , (3+2+2), of (2+3+2).
- Ametric music has no perceived meter even though a meter may have been written
into the notation
- Additive rhythm is one technique to achieve an ametric effect, often with no notated
meter, where a small note value acts as a divisional unit and is the basis for creating
longer durations
- Time-line notation passage of time and rhythm is measured by a certain number of
seconds rather than specific rhythmic values and tempo. The use of time-line notation
can be done with standard notation or is often an opportunity to use a nonstandard
graphic notation.
https://youtu.be/x_T5FXW8YCs?t=10m4s
Objective 58.3: Identify asymmetrical meter, ametric music, additive rhythm, and
time-line notation in real music examples