Judgment_paragraph 48 · Blue Air Aviation SA v UCMR – ADA Asociaţia pentru Drepturi de Autor a Compozitorilor and Uniunea Producătorilor de Fonograme din România (UPFR) v Societatea Naţională de Transport Feroviar de Călători (SNTFC) 'CFR Călători' SA (C-775/21)

48For the purposes of such an assessment, account has to be taken of several complementary criteria, which are not autonomous and are interdependent. Since those criteria may, in different situations, be present to widely varying degrees, they must be applied both individually and in their interaction with one another (see, to that effect, judgments of 14 June 2017, Stichting Brein, C‑610/15, EU:C:2017:456, paragraph 25, and of 22 June 2021, YouTube and Cyando, C‑682/18 and C‑683/18, EU:C:2021:503, paragraph 67 and the case-law cited).