Okay i can send audio with some url in inline mode. But how can i send the local audio from the directory? Telegram Bot API return me this:

A request to the Telegram API was unsuccessful. The server returned
  HTTP 400 Bad Request. Response body:
  [b'{"ok":false,"error_code":400,"description":"Bad Request:
  CONTENT_URL_INVALID"}']
InlineQueryResultAudio only accepts links while InlineQueryResultCachedAudio only accepts file_id. What you can do is post the files to your own server or upload it elsewhere to use the former one, or use SendAudio to get the file_id of it and use the latter one.
Telegram Bot API InlineQueryResultAudio