This document is Clavé’s personal account notebook for the years 1873 and 1874. It is a very interesting manuscript document related to the economics of the Cors de Clavé as well as Clavé’s personal and professional economics. There, he recorded, month by month, his income and his expenses. The greatest part of his income came from his work as governor of the province of Tarragona in 1873, when he earned approximately 3,777 reales a month. The second source of income was the sale of his scores, listed as “copias de partituras” (copies of scores) in the manuscript. He details copying his manuscripts and selling them to the choruses of workers of the Barceloneta, Sarrià and Tarragona.