h-notespace is a collection of music-relevant calculations implemented in haskell.
The project is work in progress, in that
- it currently just offers a command-line interface,
- some of the features are still musically inacurrate,
- not all intended features are implemented yet,
- the code iself reeks of prototyping -- a refactoring is in order.
- Install the haskell project tool stack.
- Build h-notespace by
~/h-notespace$ stack build - Run h-notespace by
~/h-notespace$ stack exec h-notespace-exe
Once you run h-notespace you get the intro message
This is notespace, a music calculator.
In the applications below you enter notes as, e.g., Fs, F#, fs, f#, Gb or gb.
Choose application (or 0 to exit):
1 impro suggester
2 namer
3 scale chord finder
4 known scale chord finder
5 player
6 fretboard quizzer
Input a set of notes and a root and get a list of suggestions for improvisations.
Input a set of notes and a root and get a name for them.
Sample run:
RECOGNIZER: What notes do you want to name?
Enter a note to continue or just hit enter to finish:
a
Enter a note to continue or just hit enter to finish:
c#
Enter a note to continue or just hit enter to finish:
e
Enter a note to continue or just hit enter to finish:
RECOGNIZER: You chose the notes:
[A,Cs,E]
RECOGNIZER: What would be the root?
a
RECOGNIZER: "TRIAD: A major"
Input a set of notes and an example of a chord (not necessarilly consisting of the notes you've provided), and get all chords in the set you've provided that are the same type of chord as the example.
Sample run:
RECOGNIZER: In what notes do you want to search for chords?
Enter a note to continue or just hit enter to finish:
e
Enter a note to continue or just hit enter to finish:
f#
Enter a note to continue or just hit enter to finish:
g
Enter a note to continue or just hit enter to finish:
a
Enter a note to continue or just hit enter to finish:
b
Enter a note to continue or just hit enter to finish:
c#
Enter a note to continue or just hit enter to finish:
d
Enter a note to continue or just hit enter to finish:
RECOGNIZER: You chose the notes:
[E,Fs,G,A,B,Cs,D]
RECOGNIZER: What is an example of a chord whose kind you are looking for in these notes?
Enter a note to continue or just hit enter to finish:
c
Enter a note to continue or just hit enter to finish:
e
Enter a note to continue or just hit enter to finish:
g
Enter a note to continue or just hit enter to finish:
RECOGNIZER: You chose to look for chords like:
[C,E,G]
RECOGNIZER: Here are chords like this in the notes you've provided:
[G,B,D]
[A,Cs,E]
[D,Fs,A]
Input a set of notes and get all chords out of these notes of a known type.
Sample run:
RECOGNIZER: In what notes do you want to search for known chords?
Enter a note to continue or just hit enter to finish:
e
Enter a note to continue or just hit enter to finish:
f#
Enter a note to continue or just hit enter to finish:
g
Enter a note to continue or just hit enter to finish:
a
Enter a note to continue or just hit enter to finish:
b
Enter a note to continue or just hit enter to finish:
c#
Enter a note to continue or just hit enter to finish:
d
Enter a note to continue or just hit enter to finish:
RECOGNIZER: You chose the notes:
[E,Fs,G,A,B,Cs,D]
RECOGNIZER: Here are known chords in the notes you've provided:
"TRIAD: G major"
"TRIAD: A major"
"TRIAD: D major"
"TRIAD: E minor"
"TRIAD: Fs minor"
"TRIAD: B minor"
"TRIAD: Cs diminished"
"TETRAD: G major seventh"
"TETRAD: D major seventh"
"TETRAD: A seventh"
"TETRAD: E minor seventh"
"TETRAD: Fs minor seventh"
"TETRAD: B minor seventh"
"TETRAD: Cs half-diminished, aka minor seventh b5"
Input a series of notes in "nod triples", that is, in scientific pitch notation with a duration in beats (see sample run below for examples), and get the melody played back.
Based on an idea of tsoding the implementation currently uses ffplay of the ffmpeg framework, so you have to have this installed in your system for the player to work. The player saves the melody in a temporary bin file, which is deleted right after playback.
Sample run:
PLAYER: Input a melody that you want to play in note-octave-duration triples (the duration given in number of beats):
Enter a nod triple to continue or just hit enter to finish:
eb-4-2
Enter a nod triple to continue or just hit enter to finish:
c-4-1
Enter a nod triple to continue or just hit enter to finish:
f-4-1
Enter a nod triple to continue or just hit enter to finish:
eb-4-2
Enter a nod triple to continue or just hit enter to finish:
c-4-2
Enter a nod triple to continue or just hit enter to finish:
eb-4-1
Enter a nod triple to continue or just hit enter to finish:
eb-4-1
Enter a nod triple to continue or just hit enter to finish:
c-4-1
Enter a nod triple to continue or just hit enter to finish:
f-4-1
Enter a nod triple to continue or just hit enter to finish:
eb-4-2
Enter a nod triple to continue or just hit enter to finish:
c-4-2
Enter a nod triple to continue or just hit enter to finish:
ffplay version 3.4.11-0ubuntu0.1 Copyright (c) 2003-2022 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[f32le @ 0x7f6478000b80] Estimating duration from bitrate, this may be inaccurate
Input #0, f32le, from 'soundfile.bin':
Duration: 00:00:04.00, bitrate: 1407 kb/s
Stream #0:0: Audio: pcm_f32le, 44000 Hz, 1 channels, flt, 1408 kb/s
3.90 M-A: 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
Answer questions about the guitar fretboard (inspired by GuitarZoom.com's video on memorizing notes).
Sample run:
FRETBOARD QUIZZER: What is the note on fret 11 of string 1 in standard tuning?
eb
FRETBOARD QUIZZER: Correct! Hit enter to continue or enter an arbitrary key to exit.
FRETBOARD QUIZZER: Where is the note G on string 1 in standard tuning?
3
FRETBOARD QUIZZER: Correct! Hit enter to continue or enter an arbitrary key to exit.
FRETBOARD QUIZZER: Where is the note Gs on string 1 in standard tuning?
3
FRETBOARD QUIZZER: Wrong. Hit enter to continue or enter an arbitrary key to exit.
e