Albert Renaud (1855-1924), Toccata en Ré mineur, Opus108 No. 1, played on
Sonarte organ with Hauptwerk, 1870, Cavaillé-Coll, Oloron-Sainte-Marie,
Cathédrale Sainte-Marie, France
For this music you profit from the manual extension of this organ, as this piece includes an a3 (at ~04.07)