in C Major NO sharps and NO flats all notes are naturals. The eighth note would, of course, be the next A. # division by 12 and subtracting 1 gives us the octave (e.g. Six beats per measure, but now the eighth note gets the beat. A note that is an octave higher or lower than a note named C natural will also. # an octave has 12 pitches, and octave numbering starts at -1, so Pitch = input("Please enter a MIDI pitch (0 - 127): ") # Given a MIDI pitch integer, find its octave. It also shows how to do input and output, as well as perform arbitrary calculations. 45) shows how to calculate the octave of a MIDI pitch. To demonstrate this, the following program ( Ch. Since notes are represented by numbers (pitches are integers, durations are floats), we can use arithmetic to analyze or synthesize music.įact: Music is numbers, and numbers are music. To play a melody, see code samples in chapter 3. Now that you know more about note representation in Python, you may change this program to play different notes. Note = Note(C4, HN) # create a middle C half note # Demonstrates how to play a single note.įrom music import * # import music library 34) demonstrates how to play a single musical note. Everything else is represented accordingly. Common durations include whole, half, quarter, and eighth notes (see below).Ī quarter mote is the point of reference, and so it is represented as 1.0 (QN = 1.0). In Python, durations are represented by a real number (float). In standard notation, duration is represented by the type of note head used, and by the attached vertical lines. The duration of a note specifies how long it sounds. For comparison, a standard, 88-key piano offers about 7 octaves. This follows the MIDI standard, which represents pitches from 0 (lowest pitch) to 127 (highest pitch). These symbols (e.g., C4) stand for integers and range from 0 to 127.įor example, C4 (middle C on a piano) is 60. In Python, pitches are represented by a letter (C, D, E, F, G, A, or B) followed by the octave (or register) of the pitch (as seen below). In standard music notation, pitch is represented by the vertical placement of a note on the staff. The pitch of a note specifies how high or low the note sounds. (It may also include information about dynamic and panning.) More information is provided in the reference textbook.Ī note in Python consists mainly of pitch and duration. This chapter is mainly for people with little or no background in music or computer programming. This chapter provides an overview of music representations, and corresponding ways to represent data and information in Python. No voice plays a half note in the measure in question. Topics: Fundamentals of music, the Python music library, notes, rests, variables, integers and floats, arithmetic operations, input and output, coding a program. There are only two rhythmic layers in that section: a melody, and a steady, quarter note accompaniment.
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