English: Mel-scale from 200 to 1500, in intervals of 50. Each note is played as a sine-wave, for 0.5 seconds.

```python import numpy as np from pydub import AudioSegment

def mel_to_hz(m):

 return (10**(m/2595) - 1)*700

sample_rate = 44100 duration = 0.5

samples = [] for freq in [mel_to_hz(m) for m in range(200, 1501, 50)]:

 sample = (np.sin(2*np.pi*np.arange(sample_rate*duration)*freq/sample_rate)*32767).astype(np.int16)
 samples.append(sample)

samples = np.concatenate(samples)

1. Create audio segment from the samples

audio = AudioSegment(samples.tobytes(), frame_rate=sample_rate, sample_width=samples.dtype.itemsize, channels=1) audio

```