:orphan:

Piano Phase
===========

*Example script* (scamp): `examples/Composition & form/Larger-scale form/reich_piano_phase.py <https://github.com/MarcTheSpark/scamp/blob/main/examples/Composition & form/Larger-scale form/reich_piano_phase.py>`__

*Download:* :download:`reich_piano_phase.py <downloads/composition_form_larger_scale_form_reich_piano_phase/reich_piano_phase.py>`

Steve Reich's Piano Phase: the same figure forked at 100 vs. 98 BPM, transcribed on one clock.

*Topics:* :doc:`Time & clocks › Setting & changing tempo <time_clocks>`, :doc:`Notation & engraving › Quantization <notation_engraving>`, :doc:`Composition & form › Larger-scale form <composition_form>`

.. raw:: html

   <div style="border:1px solid #ccc;padding:8px;margin:0.2em 0 0.6em;display:inline-block;max-width:100%"><img src="../_static/media/Composition%20%26%20form/Larger-scale%20form/reich_piano_phase.svg" alt="score" style="max-width:100%;height:auto;display:block"></div>

.. raw:: html

   <div style="margin:0.6em 0"><audio controls preload="none" src="../_static/media/Composition%20%26%20form/Larger-scale%20form/reich_piano_phase.mp3" style="width:100%;max-width:520px"></audio></div>

.. code-block:: python

   from scamp import *

   session = Session()

   piano1 = session.new_part("Piano")
   piano2 = session.new_part("Piano")

   pitches = [64, 66, 71, 73, 74, 66, 64, 73, 71, 66, 74, 73]


   def piano_part(which_piano):
       while True:
           for pitch in pitches:
               which_piano.play_note(pitch, 1.0, 0.25)


   clock1 = session.fork(piano_part, args=(piano1,), initial_tempo=100)
   clock2 = session.fork(piano_part, args=(piano2,), initial_tempo=98)

   session.start_transcribing(clock=clock1)
   session.wait(30)

   performance = session.stop_transcribing()
   performance.to_score(QuantizationScheme.from_time_signature("3/4", 16)).show()