On September 10, 2018 Rizky Agil Ristantyo successfully defended his thesis entitled: The Effect of Playing Recording Musical Instruments on Musical Intelligence in the Cultural Arts Subject at SMP Negeri 1 Lawang with the main supervisor Dra. Ninik Harini, M.Sn with the examiners Dr. Soerjo Wido Minarto, M.Pd, Dra. Ninik Harini, M.Sn, and Kelik Desta Rahmanto, S.Sn, M.Pd.