by bruce mars é³æ¥½æ¥çã§ã¯ã¹ããªã¼ãã³ã°ãµã¼ãã¹ãå¢ããå¢ãã¦ãããAppleãå®æè³¼å ¥ã«ããã¹ããªã¼ãã³ã°ãµã¼ãã¹ãæ¬æ ¼åãããè¨ç»ã§ããã¨å ±ãããã¦ãã¾ããã¢ã¡ãªã«ã¬ã³ã¼ãåä¼(RIAA)ãæ°ãã«çºè¡¨ããå ±åã§ã¯ãããã«é³æ¥½ã®ãã¸ã¿ã«ãã¦ã³ãã¼ããè¡°éãã¦ããã®ãã示ããã¦ãã¾ãã RIAA-Year-End-2017-News-and-Notes.pdf http://www.riaa.com/wp-content/uploads/2018/03/RIAA-Year-End-2017-News-and-Notes.pdf CDs and vinyl are more popular than digital downloads once again - The Verge https://www.theverge.com/2018/3/22/17152120/digit

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