app.py

import gradio as gr

# from musicautobot.numpy_encode import file2stream
from musicautobot.utils.setup_musescore import play_wav
from music21.midi.translate import midiFileToStream
from pathlib import Path
from midi2audio import FluidSynth

import subprocess
import os

print(os.getcwd())
# print(os.listdir())
# print(os.listdir('..'))  # ['.bash_logout', '.bashrc', '.profile', 'app', '.cache', '.local']
# print(os.listdir('../.local'))  # ['bin', 'lib', 'etc', 'share']
# print(os.listdir('../..'))  # ['user']
# print(os.listdir('../../..'))  # ['bin', 'boot', 'dev', 'etc', 'home', 'lib', 'lib64', 'media', 'mnt', 'opt', 'proc', 'root', 'run', 'sbin', 'srv', 'sys', 'tmp', 'usr', 'var', '.dockerenv']
print(os.listdir('../../../bin'))
result = subprocess.run(['echo $PATH'], capture_output=True, shell=True)
print(result.stdout)

# subprocess.run(['PATH=$PATH:~/opt/bin'])
# subprocess.run(['PATH=$PATH:~/opt/bin/fluidsynth'])
# subprocess.run(['fluidsynth'], shell=True)
 
def process_midi(midi_file):
    name = Path(midi_file.name)
#     stream = midiFileToStream(midi_file)
#     output_wav = play_wav(stream)
#     FluidSynth("../usr/share/sounds/sf2/FluidR3_GM.sf2").midi_to_audio(name, 'test.wav')
    FluidSynth("FluidR3_GM.sf2").midi_to_audio(name, 'test.wav')
    return output_wav

iface = gr.Interface(
    fn=process_midi, 
    inputs="file", 
    outputs="audio"
)

iface.launch()