Comparison of Guitar and Piano instruments in Kiss the Rain and Bongga Ka Day songs using Fourier Analysis

Abstract

This study aims to give an overview of the relationship between mathematics and music by examining the comparison of sound waves produced by the guitar and piano instruments. This study focuses on the waves that represent the sounds of the instruments. Both guitar and piano produce complicated waves, unlike pure tones that produce sine waves or simple sinusoidal waves.  The purpose of this study is to use Fourier Analysis as a method to understand the different constituents of sound waves of the individual notes in musical pieces “Kiss the Rain” and “Bongga Ka Day” played by the guitar and piano instruments. This method will help us to easily differentiate the sounds produced by the instruments. The data used in this study were manually recorded using a standard piano and acoustic guitar for consistency. The data were gathered using MATLAB software, a software that combines a desktop environment tuned for iterative analysis and design processes with a programming language that expresses matrix and array mathematics directly.