$3\mathrm{.}13$ LAB: Musical note frequencies

LAB

ACTIVITY

$3\mathrm{.}13\mathrm{.}1$: LAB: Musical note frequencies

On a piano, a key has a frequency, say fo$.$ Each higher key $($black or white$)$ has a frequency of fo $*r^n,$ where $n$ is the distance $($number of keys$)$ from that key, and $r$ is $2^{(\frac{1}{12})}.$ Given an initial key frequency, output that frequency and the next $3$ higher key frequencies.

Output each floating$-$point value with two digits after the decimal point, then the units $("$Hz$"),$ then a newline, using the following statement:

print $($ your$\_$value: $\mathrm{.}2f)$

Ex: If the input is:

$440$

$($which is the A key near the middle of a piano keyboard$),$ the output is:

$440\mathrm{.}00Hz$

$466\mathrm{.}16Hz$

$493\mathrm{.}88Hz$

$523\mathrm{.}25Hz$

Note: To compute the next $3$ higher key frequencies, use one statement to compute $r=2^{(\frac{1}{12})}$ using the pow function $($remember to import the math module$).$ Then use that $r$ in subsequent statements that use the formula $fn=f0**r^n$ with $n$ being $1,2,$ and finally $3.$