Trio 258 was formed in 2015 in an atmospheric rehearsal space on Keizersgracht 258 in Amsterdam. At the same address, a few floors down, Leonard's cello was also crafted by violin maker Matthieu Besseling, who is Leonard's father. The trio has performed at various venues including the Concertgebouw Amsterdam, Muziekgebouw Eindhoven, TivoliVredenburg Utrecht, Opéra National de Bordeaux (France), and at festivals like the Storioni Festival and the Grachtenfestival. The trio is also frequently seen on television programs such as Podium Witteman and Podium Klassiek.

Inspired by their shared passion for chamber music, the members of TRIO 258 are continually in search of the most powerful possible connection with the music and their audience. In this exploration, they do not shy away from the personal; they explore the boundaries of intimacy and vulnerability in their love for the repertoire. The trio is searching for its own sound, inspired by a more romantic sonic ideal from the past—a sound that always emerges from what the music demands. TRIO 258 focuses mainly on the Romantic period (1810-1915), a time when, especially compared to the Baroque and Classical periods, authentic performance practice is less frequently highlighted. It is precisely from this period that some sound recordings still exist, from which one can to some extent deduce how the music was played at that time. TRIO 258 is inspired by this heritage: experience, uniqueness, and the search for freedom in music in the most boundless way are central. Additionally, Eduardo and Leonard play on gut strings, just like the string players from the Romantic era; strings that go out of tune more quickly, presenting a greater challenge to play, but offering more possibilities in terms of tone color and articulation.

The repertoire of the trio ranges from Haydn to Fazil Say, with special attention naturally given to the romantic piano trio repertoire. The debut album 'The Return' by Trio 258 was released in January 2023 by Challenge Records and was highly praised by outlets such as NRC, Trouw, and Pizzicato Magazine.