The mutability is a natural condition of music, especially in the jazz universe. In this territory, both the way of interpreting a repertoire and the choice of instruments to perform it can change over time. Gustavo Musso (saxophonist in the Escalandrum group) and Esteban Sehinkman (keyboardist for Pájaro de Fuego and producer of the Real Book Argentina) come together on this album to explore in their own way the melodies, harmonies, and solos once conceived by absolute jazz icons like Duke Ellington, Charlie Parker, Miles Davis, and Dizzy Gillespie, among others. The execution of the EWI (an electronic saxophone) in Musso's agile fingers, and Sehinkman's synthesizers filled with details, blend to create a futuristic electronic atmosphere with renewed perspectives towards the sources of jazz. However, technology is not the only stronghold of this proposal, as the musicians also express their own melodic and harmonic ideas, deconstructing works they have known for decades. The album's journey includes versions of "Caravan," "A Night in Tunisia," or "Cherokee"; some ballads like "In a Sentimental Mood" or "Blue in Green"; classics like "Smile" (Chaplin) and "On the Sunny Side of the Street"; and approaches to bebop with emblematic tracks like "Parker's Mood," "Donna Lee" (Parker), and Sonny Rollins' "Oleo." "Mutable" is the name of the album by Gustavo Musso (ewi) and Esteban Sehinkman (synthesizers) in which they dissect ten jazz standards to offer us new versions from the timbral (thanks to the use of the ewi, an electronic wind instrument) and formal.