musicgen 0.0.1

A module for pre-processing steps in music generation

# musicgen musicgen is a module for pre-processing audio and to prepare the dataset for neural networks in genarating music. Built on top of Music21 and youtube_dl

Features

• Download the songs,videos from URL
• Get the notes from music
• Prepare the dataset for neural networks

Installation

$ pip install musicgen

get_notes(path='*.mid')

Get all the notes and chords from the midi files

Args:

path : path for the song with midi extension. ‘*.mid’ by default which gets the note of all the songs in the current working directory.

Returns:

List of notes obtained from the midi file

download_song_with_url(url,audio_type='mp3',quality='192')

Downloads the audio of a video present in the given video URL to current working directory.

Args:

url : (string) URL of a video
audio_type :(string)"aac", "flac", "mp3", "m4a", "opus", "vorbis", or "wav". ‘mp3’ by default

create_midi(prediction_output,name='output')

convert the output from the prediction to notes and create a midi file from the notes in current working directory.

Args:

prediction_output : the output predictions of a trained model.
name : (string) name of the generated file. output by default.

prepare_sequences(notes, n_vocab,sequence_length = 100)

Prepare the sequences used by the Neural Network

Args:

notes : (list) notes of midi file
n_vocab : (int) number of unique notes
sequence_length : (int) number of time steps required. 100 by default.

Returns:

network_input, network_output

download_video_with_url(url)

Downloads the video from the given URL into current working directory.

Args:

url : (string) URL of a video

download_videos(path)

Downloads the videos from the URL’s present in a text file into current working directory.

Args:

path : (string) path of a text file containing URL’s

download_songs(path)

Downloads the audio of videos from the URL’s present in a text file into current working directory.

Args:

path : (string) path of a text file containing URL’s.

song_notes_to_pickle(path,output)

saves the notes of a midi file as a pickle object.

Args:

path : (string) path of the songs
output : (string) name of the pickle file.

generate_notes(model, network_input, pitchnames, n_vocab)

generates the notes from the trained keras model

Args:

model : Trained keras model for prediction
network_input : input to the network
pitchnames : set of items in the notes. It is found using pitchnames = sorted(set(item for item in notes))
n_vocab : (int) number of unique notes

Returns:

predicted_output