song_importer.py

from tqdm import tqdm
import glob
import numpy as np

class SongImporter(object):
    def __init__(self, path, midi_coordinator):
        self._path = path
        self._midi_coordinator = midi_coordinator
        
    def getSongs(self):
        files = glob.glob('{}/*.mid*'.format(self._path))
        songs = []
        for file in tqdm(files):
            try:
                song = np.array(self._midi_coordinator.midiToMatrix(file))
                if np.array(song).shape[0] > 50:
                    songs.append(song)
            except Exception as e:
                raise e           
        return songs