You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "note_duration", "description": "Calculates the duration between two musical notes based on their frequencies and the tempo.", "parameters": {"freq1": {"description": "The frequency of the first note in Hz.", "type": "int", "default": 120}, "freq2": {"description": "The frequency of the second note in Hz.", "type": "int", "default": 120}, "bpm": {"description": "The tempo of the music in beats per minute. Defaults to 120.", "type": "int, optional"}}}]
What is the duration between a note with a frequency of 800 Hz and a note with a frequency of 1600 Hz, at a tempo of 240 beats per minute?
user
assistant
[{"name": "note_duration", "arguments": {"freq1": 800, "freq2": 1600, "bpm": 240}}]