I'm glad that it works for you.
It certainly has good educational value.
But it's not the most efficient way of doing it.
The almost universally ascertained way of targetting frequency is dialing a hefty 10-15 dB boost with a largeish bandwidth (0.5-1 octave) and sweep the frequency till one hits the desired frequency; then reducing bandwidth helps pinpointing if necessary.
Using a reference sine wave adds an unnecessary stage to the process; you still have to fine-adjust the frequency for EQing.
Even highly trained SE's who are very good at identifying frequencies have to fine-adjust.
It certainly has good educational value.
But it's not the most efficient way of doing it.
The almost universally ascertained way of targetting frequency is dialing a hefty 10-15 dB boost with a largeish bandwidth (0.5-1 octave) and sweep the frequency till one hits the desired frequency; then reducing bandwidth helps pinpointing if necessary.
Using a reference sine wave adds an unnecessary stage to the process; you still have to fine-adjust the frequency for EQing.
Even highly trained SE's who are very good at identifying frequencies have to fine-adjust.