After his return to New York, Nyogetsu was awarded the rank of Shi-han (Master) in 1978 as a result of his efforts to spread the teaching of this instrument in America.
In 1980, he received his Dai-Shihan, or Grand Master's license. In April 2001, Nyogetsu received a Koku-An Dai-Shihan (Grand Master's license at the level of Kyu-Dan, or 9th level) from Japan's Living National Treasure in shakuhachi, Aoki Reibo. He was also given the name Reishin (Heart/Mind of the Bell) to go along with it. Nyogetsu is the first non-Japanese to receive this high award.
Nyogetsu has performed in numerous concerts, lectures and demonstrations in the metropolitan area and around the United States as well as Canada, Mexico, Scotland, and Argentina. Not only has he toured Japan many times, he has also been interviewed on radio and television both here and in Japan, and has performed on the soundtracks of several documentary films including the Academy Award nominated documentary "A Family Gathering" (1989) for which he also co-composed the sound track. Nyogetsu's playing also appears on the GRAMMY-nominated "The Planet Sleeps" (SONY).
Ronnie Nyogetsu has released several recordings of shakuhachi music including cassettes, LPs and CDs. Nyogetsu is the founder of Ki-sui-an shakuhachi dojo with branches in Manhattan, Rochester/Syracuse, Ithaca, Philadelphia, and Baltimore/Washington D.C. In addition to teaching privately, Mr. Seldin is also part of the Japanese Music Program at the graduate Center of the City University of New York where he gives lectures on and demonstrations of the shakuhachi. He is also on faculty at New York University (NYU). His shakuhachi school, KiSuiAn Shakuhachi Dojo, has been the largest and most active in the World outside of Japan for the past three decades.
Ronnie Nyogetsu Reishin Seldin was Artist in Residence during Fall 2002 at the College of William & Mary in Williamsburg, Virginia. Nyogetsu was the University Artist in Residence at New York University in Spring 2004. In 2004, he produced the Fourth International World Shakuhachi Festival at New York University which proved to be the largest gathering of non-Japanese Shakuhachi players in history.