The Participated Symphonic Concerts are originally conceived and fully produced by Foco Musical. They are a pretext for curricular work-on-project in search of access to music as an art. More specifically, they are orchestra concerts, produced for the school and pre-school population, during school schedule, where students assume an indispensable intervention role from the audience. The original score is written for the audience as another section of the orchestra. The audience completes the work by taking over the interventions for which it is previously prepared in the classroom context. Being conceived for project work, the Participated Concerts promote teachers training proposals, thus obtaining highly involved, enlightened and motivated audiences for erudite music.