Where relevant, classical was extended to the outer frontiers of jazz, electronica, world and other genres: exclusive interviews and performances have been recorded with Daniel Barenboim, Joyce DiDonato, Valentina Lisitsa, the Grimethorpe Colliery Band, Hauschka and Anoushka Shankar.

Regular contributors included Norman Lebrecht, Paul Morley, Kimon Daltas, Jessica Duchen, Harriet Smith, Gavin Dixon and Colin Anderson.

Concern was voiced that Sinfini, funded by Universal Music, lacked critical independence.

The blogger Opera Creep commented "Most importantly the funding status or any mention to Universal has been removed from the About section on the site.

A new visitor to it would possibly mistake it for an independent voice “cutting through classical” but I am afraid that fig leaf can't quite hide the fact that Universal bankroll them at the tune of millions."