Analysis of the tone of classical guitar al-aire technique and apoyando technique by evaluation factor

Abstract

In classical guitar, playing technique affects the tone and expression. The results of FFT(Fast Fourier Transform) analysis and calculation of overtone content rate showed that the fundamental tone is emphasized in the apoyando technique, while the overtones are more abundant in the al-aire technique. In addition, the overtones were divided into consonant interval components and dissonant interval components, and the consonant interval factor was calculated to evaluate the balanc e between the two components. The results showed that the al-aire technique had higher factor. We believe that scientific clarification of the difference in tone between the al-aire technique and the apoyando technique will enable more effective improvement of tone.