Once again, Concerto Koln stands out for it's clever programming, which explores the underlying concept of the album from different angles. "As a violinist, the playing experience is not only musical but also physical: I can often quite easily guess the physical traits of the hands and arms of each of these composers. One had a strong pinky or a long middle finger, the other liked to play lightly or heavily in the right arm and so on", explains Shunske Sato.Concertos written for four solo violins by three different composers are featured on the album: The B minor (RV 580) and D major concertos (RV 549) by Antonio Vivaldi, as well as a concerto each by Giuseppe Valentini and Pietro Antonio Locatelli. The CD also includes solo concertos for one violin and orchestra by Antonio Bonporti and Pietro Castrucci (with Evgeny Sviridov and Jesús Merino Ruiz as soloists, respectively).