About the standar tune 440hz

[J.A.]

May 31 2012. Last days I convert some radiohead music to 451hz pitch with audacity program cause somebody explain is natural frecuency in A tune who was changued since 1939 by ISO, The music seems more clear, could it be possible?, the problem of high tensions in music has been criticized since Platón but empirically the music works better if it’s transposed almost at the semitone considering A tune more sharply I don’t know why but sounds better