https://github.com/pleabargain/arpeggiator

Ask GPT4 to create a melody for you:

https://chat.openai.com/g/g-5wHmAAefE-create-a-melody

Take the output as a dictionary

like this

# Define the melody
childish_melody_with_triads = {
    "right_hand": [
        (60, 0.5), (62, 0.5), (64, 0.5), (65, 0.5),  # C4, D4, E4, F4
        (64, 0.5), (62, 0.5), (60, 0.5), (62, 0.5),  # E4, D4, C4, D4
        (64, 0.5), (65, 0.5), (67, 1.0),             # E4, F4, G4
        (67, 0.25), (65, 0.25), (64, 0.5), (62, 0.5), # G4, F4, E4, D4
        (60, 1.0),                                    # C4
    ],
    "left_hand": [
        (48, 1.0), (55, 1.0), (52, 1.0),             # C Major chord: C3, G3, E3
        (48, 1.0), (55, 1.0), (52, 1.0),             # C Major chord: C3, G3, E3
        (48, 1.0), (55, 1.0), (52, 1.0),             # C Major chord: C3, G3, E3
        (47, 0.5), (55, 0.5), (52, 1.0),             # G Major chord: B2, G3, D3
        (48, 1.0), (55, 1.0), (52, 1.0),             # C Major chord: C3, G3, E3
    ]
}

And add it to script. You'll need to mess with the code a bit!

This script is designed to generate MIDI files based on predefined musical pieces. It utilizes the mido library for MIDI file creation and manipulation, offering users a selection of melodies to create MIDI files from. The script features compositions that navigate through various musical concepts, including the Circle of Fifths, chord progressions, and thematic melodies.

• Selection of predefined melodies, each with a unique musical character.
• Ability to count notes in each melody.
• Creation of MIDI files from selected melodies with timestamped filenames.
• Support for both right-hand and left-hand parts, simulating piano compositions.

The script includes several predefined melodies:

• harmonic_voyage_arpeggio: An exploration through the Circle of Fifths with ascending and descending arpeggios.
• circle_of_fifths_arpeggio: A concise journey through the Circle of Fifths.
• bass_and_treble_piece: A basic chord progression showcasing major and minor chords.
• ascend_and_descend_bass_and_treble_piece: A melody that ascends and descends through a series of chords.
• childish_melody_with_triads: A simple, catchy melody accompanied by triadic harmonies.
• moody_piano_piece: A piece with a melancholic mood, utilizing minor motifs and descending lines.

• Python 3.x
• mido: A Python library for working with MIDI messages and files. Install via pip:

pip install mido

Ensure you have Python 3.x and mido installed.

Run the script. It will display a list of available melodies.

Enter the number corresponding to the melody you wish to generate as a MIDI file.

The script will create a MIDI file with the selected melody, saving it with a timestamped filename indicating the melody name and the total number of notes.

Example Usage

python midi_composition_script.py

Output MIDI files are saved with names following this format: <melody_name><total_notes>_notes.mid, where:

is the current date and time. <melody_name> is the name of the selected melody. <total_notes> is the total number of notes in the melody.

Enjoy creating and exploring the musical pieces provided in this script!

This script is free to use for both personal and commercial purposes. Enjoy creating and exploring the musical pieces provided in this script!