• All code for this exercise should be entered in the cell labelled  Update .
• Rather than enter simple formulas for individual musical properties, we now want to enter blocks of code into the cell. Press Tab to switch between formula and block code editing.
• Use the constrain() function to co-opt one set of pitches to conform to the pitch classes defined by another:

  constrain(@Range, @Palette)
  

• Lambda functions allow you to iteratively apply simple expressions to a range of cells:

  @Array = f(".pitch = .pitch + 1")

  This specified expression, raising pitch by one semitone, is executed for every cell in @Array.
• The order of operations is important. We want to restrict the pitch range of the @Notes array before we constain the pitches to our palette.

copy(@Persons, @Notes)
constrain(@Notes, @Chord, 1)

copy(@Persons, @Notes)
@Notes = f(".pitch = C-4 + .pitch / 3")
constrain(@Notes, @Chord, 1)

copy(@Persons, @Notes)
@Notes = f(".pitch = C-4 + .pitch / 3")
@Notes = f(".volume = (@Persons +.volume) * 0.7")
constrain(@Notes, @Chord, 1)