Kalevi Aho turned 70 on 9 March 2019. There will be no fewer than 14 premieres during 2019. The busy spring started with the Concerto for Two Bassoons (18.1. Warsaw Philharmonic), and was followed the next day by Kirje tuolle puolen (A Letter to the Netherworld) for strings (Ostrobothnian Chamber Orchestra). On 9 May, the Triple Concerto for Violin, Cello and Piano received its world premiere (Antwerp Symphony & Storioni Trio), and the next day the Lapland Chamber Orchestra and Ismo Eskelinen performed Aho's new Guitar Concerto. The Lahti Symphony also celebrated Aho by premiering his 17th Symphony on 4 April. The next new concerto on the line is for bass clarinet and orchestra (4.9. Jyväskylä Sinfonia & clarinettist Mikko Raasakka).