Use the SignalTouch App to find the fundamental frequencies and their harmonic multiples across the keyboard octaves from the very low sub notes to the upper notes.
The app will keep the selected frequency highlighted for easy view.
The default setting for example is OCTAVE C (4) Note A = 440Hz.
Enjoy and Don’t forget to rate :)
Ratings and Reviews
Thanks bro very handy to learn :-)
Up to six family members will be able to use this app with Family Sharing enabled.