To analyze the relationship between the musical frequency of notes and the beats in the provided table, let's carefully examine the given frequencies at each beat:
[tex]\[
\begin{array}{|c|c|}
\hline
\text{Beat\#} & \text{Note Frequency (Hz)} \\
\hline
2 & 261.6 \\
\hline
3 & 392.0 \\
\hline
4 & 392.0 \\
\hline
5 & 444.0 \\
\hline
6 & 444.0 \\
\hline
7 & 392.0 \\
\hline
\end{array}
\][/tex]
We need to identify the beat intervals where the frequency of the note decreases from one beat to the next. Let's go through the table step by step:
1. From Beat 2 to Beat 3:
- [tex]\(261.6\)[/tex] Hz to [tex]\(392.0\)[/tex] Hz: The frequency increases.
2. From Beat 3 to Beat 4:
- [tex]\(392.0\)[/tex] Hz to [tex]\(392.0\)[/tex] Hz: The frequency remains the same.
3. From Beat 4 to Beat 5:
- [tex]\(392.0\)[/tex] Hz to [tex]\(444.0\)[/tex] Hz: The frequency increases.
4. From Beat 5 to Beat 6:
- [tex]\(444.0\)[/tex] Hz to [tex]\(444.0\)[/tex] Hz: The frequency remains the same.
5. From Beat 6 to Beat 7:
- [tex]\(444.0\)[/tex] Hz to [tex]\(392.0\)[/tex] Hz: The frequency decreases.
By examining the changes at each step, we can conclude that the musical frequency of notes is decreasing between beat numbers [tex]\(\boxed{6}\)[/tex] and [tex]\(\boxed{7}\)[/tex].
