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Changelog

All notable changes to the project will be documented in this file. The format is based on Keep a Changelog.

[ForMIDI v0.4 "Forbidden Love"] 2024-07-04

Forbidden Love is a song from Madonna's album Confessions On A Dance Floor (2005).

Added

  • The Meta event set_time_signature() method and the time_signature optional argument in the new() method.
  • The MIDI event pitch_bend() (demonstrated in tests).
  • In src/music.f90:
    • most useful notes values, alongside quarter_note, are now defined as Fortran parameters: whole_note, half_note, eighth_note, sixteenth_note and thirty_second_note, expressed in MIDI ticks.
    • A dotted() function returning the value of a dotted note.
    • Common note levels expressed as MIDI velocities, from pppp_level to ffff_level.
  • The method play_broken_chord() can now either accept a value argument with the whole duration or a values array argument containing the values for each note.
  • example/motifs.f90: based on Dmitri Shostakovich's DSCH motif and BACH motif, with four musical tracks. It uses the new values array argument of the method play_broken_chord().
  • Unit tests for the function variable_length_quantity(i), which was added to be called by the method write_variable_length_quantity(self, i).
  • A FORD documentation: a project file ford.yml and a workflow .github/workflows/ford.yml to generate GitHub Pages.

Changed

  • In the Note_OFF() method, the velocity argument is now optional (64 is the default value).
  • The ON and OFF MIDI constants are now defined as parameters, using their decimal value.
  • The quarter_note parameter is now 96 instead of 128 (96 has the advantage of being a multiple of 2 and 3).
  • Refactored automatic tests.

Fixed

  • The last ishft() in the write_variable_length_quantity() is now toward the right instead of left (fixes Issue #9).

[ForMIDI v0.3 "Forbidden Planet"] 2024-06-15

Forbidden Planet (1956) is considered to be the first movie with an entire electronic soundtrack, composed by Bebe and Louis Barron.

Added

  • An example/README.md file presenting each example, with links to listen the OGG files.
  • example/la_folia.f90: variations on La Folia, demonstrating the use of the method play_broken_chord().
  • A method play_broken_chord(), using an array containing the intervals to play, was added in the MIDI_file_class. For the moment, each note has the same duration.
  • A method get_name() returns the MIDI filename.
  • src/utilities.f90: offers miscellaneous functions, like checked_int8().
  • A ROADMAP.md file.
  • A logo/ directory.

Changed

  • OOP refactoring: src/formidi.f90 is now MIDI_file_class.f90.
    • The API was simplified by renaming many methods and arguments, and by removing the need to use int8, int16 or int32 integers: the user will now just use default kind integers. More simplifications:
    • init_formidi() is now automatically called when you create a MIDI file.
    • The size_pos variable is now automatically managed by the object.
    • The tempo and copyright (optional) are now passed to the construction new() method.
    • A text_event (optional) can now be passed to the new() and track_header() methods.
    • The track name is now passed to the track_header() method.
    • The metadata track is now closed automatically at the end of the new() method.
    • The subroutine write_chord() (renamed play_chord()) was moved in the MIDI_file_class.
    • The method Note() was split in two: Note_ON() and Note_OFF().
  • Examples:
    • src/demos.f90 was removed and split into example/third_kind.f90, example/canon.f90, example/blues.f90 and example/circle_of_fifths.f90. They can be run with the fpm run --example command.
    • In examples, keyword argument lists are now generally used to improve understanding and comments were added.
    • The multi-tracks examples canon.f90, blues.f90 and la_folia.f90 now uses the control change Pan to obtain a stereo effect.
  • src/music.f90 was splitted in two files: src/music.f90 and src/music_common.f90 which contain music theory elements common to the ForMIDI and ForSynth projects.
  • The function get_MIDI_note() (renamed MIDI_note()) was moved in src/music.f90.
  • build.sh improved.

Removed

  • app/main.f90 was removed.

Fixed

  • example/blues.f90: the note_OFF events of the drums were not correctly placed.

[ForMIDI v0.2 "Forever Young"] 2022-12-15

"Forever Young" is a song by the German band Alphaville (1984).

Added

  • src/formidi.f90: added subroutines to write text inside a MIDI file (meta-events FF 01 to FF 07).
  • src/music.f90: a module containing some music theory elements (scales, circle of fifths, chords), and the subroutine write_chord() and the function get_note_name().
  • src/MIDI_control_changes.f90: a module with all the MIDI Control Changes parameters.
  • src/GM_instruments.f90: contains the list of 128 General MIDI instruments and 47 percussive instruments (channel 9).
  • src/demos.f90: a new demo4 plays a random walk on the circle of fifths.
  • test/main.f90: a subroutine tests_MIDI() for quickly testing MIDI related functions, with fpm test.
  • build.sh can now also use the Intel ifx compiler: $ FC='ifx' ./build.sh. the default compiler is GFortran.

Changed

  • src/demos.f90: demo3 (stochastic blues) now uses power chords. In demo3, the MIDI notes were replaced by notes names.

[ForMIDI v0.1 "Formidable"] 2021-03-02

"Formidable" is a song by the Belgian talentuous artist Stromae.

Added

  • Initial commit.

Changed

  • Translated from the C version (2016-02-16).