in other words all my music at 440Hz convert it to 528hz.
A = 440Hz simply the normal tuning standard. Musical Notes & Frequencies.
It's arbitrary but
it means everybody can agree on what an 'A" is (and all of the other notes can be derived from there) and it allows a band/orchestra to play in-tune and it allows musical instrument manufacturers to make instruments that are tuned (or can be tuned) alike so they can play together.
If you are singing A cappella or playing a solo instrument you don't have to play/sing standard notes. An "out-of-tune" solo guitar will sound perfectly fine as long as it's in-tune with itself. Some instruments (like guitar) can be easily tuned to a different standard. It takes a long time to re-tune a piano so if there is a piano, usually the whole band tunes their instruments to match the piano. Some horns & woodwinds can't be re-tuned.
528Hz is not a standard note but there is a 'C' at 523.251Hz. It might be better to re-tune/de-tune the 'C'.
Although virtually all music is tuned to A=440,
there are many songs that don't have any 'A' notes, or they may have 'A' notes in higher or lower octaves. So, you can re-pitch a song, changing it from 440Hz to 528Hz and there may not be any sound at exactly 528Hz.
All real world sounds contain harmonics & overtones (additional frequencies) and that's why a trumpet playing an 'A' sounds different from a piano playing the same note.
Regular music with multiple instruments & voices, some playing chords, contains thousands of simultaneous frequencies.
GoldWave can show the frequency content as the music is playing -
If you don't already have the "large" controls/meter showing click
Window -> Classic Contol. Then right-click on the meters and select
Spectrum.
If it is not possible to convert all the frequencies, to be able to convert at least the 528 hz one, since I would really need that frequency but if you can give me the values of all the frequencies it would be fantastic for me! Thanks in advance for your attention and for your help!
With simple pitch-shifting, everything gets
shifted by the same percentage. For example, there is a standard 'F' at 174.614 Hz and that could be shifted down slightly to match your 174Hz target and everything else will be shifted-down by the same percentage. (With such a slight change you won't hear a difference unless you are a musician trying to play in-tune.)
With more advanced software it's possible to shift different frequencies differently but then the music will sound out-of-tune.