def weather_to_music(self, api_key, city) -> MidiFile:
api_handling = WeatherApi()
converter = Converter()
weather_forecast = api_handling.get_weather_forecast_from_api(
city, api_key)
average_temperature = converter.average_temperature(
weather_forecast.weather_timestamps)
ticks_per_beat = converter.average_temperature_to_ticks_per_beat(
average_temperature)
outfile = MidiFile()
outfile.ticks_per_beat = ticks_per_beat
melody_builder = MelodyBuilder(outfile, self.PHRASE_LENGTH)
temperature = TemperatureTrack(1, Instruments.BrightAcousticPiano)
rain = RainTrack(2, Instruments.Celesta)
clouds = CloudsTrack(3, Instruments.TremoloStrings)
humidity = HumidityTrack(4, Instruments.ElectricGuitar_clean)
wind = WindTrack(5, Instruments.Seashore)
for track in [temperature, rain, clouds, humidity, wind]:
melody_builder.set_instrument(track.get_track(),
track.get_channel(),
track.get_instrument())
for entry in weather_forecast.weather_timestamps:
base_note = converter.temperature_to_base_note(
entry.temperature.feels_like)
music_scale = self.music_scales.melodic_minor(base_note)
temperature_sequence = TemperatureSequence(entry.temperature,
self.PHRASE_LENGTH,
base_note,
temperature.get_track())
temperature_appender = TemperatureAppender()
temperature_appender.append(melody_builder, temperature_sequence,
temperature)
rain_sequence = RainSequence(entry.weather.rain,
self.PHRASE_LENGTH, base_note,
rain.get_track(), music_scale)
rain_appender = RainAppender()
rain_appender.append(melody_builder, rain_sequence, rain)
clouds_sequence = CloudsSequence(entry.weather.clouds,
self.PHRASE_LENGTH, base_note,
clouds.get_track())
clouds_appender = CloudsAppender()
clouds_appender.append(melody_builder, clouds_sequence, clouds)
humidity_sequence = HumiditySequence(entry.weather.humidity,
self.PHRASE_LENGTH, base_note,
humidity.get_track())
humidity_appender = HumidityAppender()
humidity_appender.append(melody_builder, humidity_sequence,
humidity)
wind_sequence = WindSequence(entry.weather.wind_speed,
self.PHRASE_LENGTH, base_note,
wind.get_track())
wind_appender = WindAppender()
wind_appender.append(melody_builder, wind_sequence, wind)
for track in [
temperature.get_track(),
rain.get_track(),
clouds.get_track(),
humidity.get_track(),
wind.get_track()
]:
outfile.tracks.append(track)
file_name = 'weather_song_' + weather_forecast.city + '_' + weather_forecast.country + '_' + str(
weather_forecast.weather_timestamps[0].timestamp)
self.save_file(outfile, self.OUTPUT_FILE_DIR, file_name)
return outfile
