title: Python: Merging Audio files that are in io.BytesIO form
body: <p>I have a service that sends text to an external text to speech service that returns back audio in a response. This is how i access the audio:</p>
  
  <pre><code>res = requests.get(TTS_SERVICE_URL, params={"text":text_to_synth})
  bytes_content = io.BytesIO(bytes(res.content))
  audio = bytes_content.getvalue()
  </code></pre>
  
  <p>Now i would like to send multiple lines of text in different requests, and receive all the audio content in bytes, merge them into one audio and then display it, can anyone guide me as to how would i be able to merge the bytes_content into one audio byte stream</p>