"DiscoWave" is an EDM Pop song, being the genre showcased in form of alternative Electro. Also described as a downtempo Pop, it features a smooth Pop-Eletro production, and heavy beats. According to music critics, the song represents a change from the mainly pop influences of his previous releases as R&B singer. "DiscoWave" was written in common time in the key of D# major, with a moderate tempo of 105 beats per minute. The verses center around the chords of D major and F ♯ major, with the vocal melody in the verses being pentatonic. Bruno's vocal performance makes use of ad-libs, at points using triplets against the prevailing tempo. The song demonstrates Bruno Saravia vocal range, particularly with high notes.