lab7/hw8, csc354 Spring 2009, Smith College
April 1, 2009. due Friday April 3 and Wednesday April 8.
The purpose of this lab/hw is to explore more of Belkin's general ideas
for composing within pd.
Continuity with ostinato. This part is due Friday April 3.
-
lab7.pd is a patch that produces a bass line of steady beats,
in octave o2 using MIDI bass guitar instrument 37. Four pitches, from first (tonic note), to
third, fifth to eighth (tonic note one octave up) are played as an Ostinato
(In music, an Ostinato (derived from Italian: "stubborn", compare English: obstinate) is a motif or phrase which is persistently repeated in the same musical voice.).
The subpatch nextPitch
takes in an integer pitch value and stores it in
the cold inlet of its + object.
That way it can produce the bass line for any tonic (first) note.
- Modify lab7.pd so a user can easily
select
- how many beats
of bassline to produce. This should be a multiple of four.
- how many milliseconds per beat (to be stored in the cold inlet of metro).
- Now try a adding a second voice, using a different instrument.
This new phrase should contain several repetitions of a motive (short melody),
then two repetitions of a different motive, and then several more repetitions of
the first motive. The
result should be the two phrases played in parallel (bass plays first
phrase, new voice plays second).
Make the bass line and new phrase line play for the same amount of time.
- As usual, please place this in your web page and be ready to play
it on Friday.
Elaboration/continuation: This part is due Wednesday April 8
- Create a short motive that you like, containing a few notes.
Use a third instrument for this voice.
- Repeat the phrase a few times, slightly varying it each time.
- Create a second short motive that you like, but
with a different instrument patch. Make sure this phrase also includes
some rests (perhaps using delays?).
- Create a transition from your old motive and its recapitulations,
to your new phrase using one of the Transition techniques from bottom of page four the Belken summary:
- gradual evolution
- repeat with new turn
- anticipation
- elision
- overlap
- alternation
- climax
- interruption
- full stop and restart
- Finally go back to your original motive, repeating it once or twice, while
slowing it down.
- As usual, please place this in your web page and be ready to play
it on Wednesday.
