found: Palestrina, G.P. da. Pärt & Palestrina, p2011:label (Risto Joost, conductor)
found: ERP Music website, Feb. 10, 2012(Conductor Risto Joost (b 1980) has graduated from the Estonian Academy of Music, received further training at the University of Music and Performing Arts in Vienna and completed postgraduate studies at the Royal College of Music in Stockholm majoring in orchestral conducting with Prof Jorma Panula ; counter-tenor ; Orchestral and opera conductor. Conductor of the Year 2009 (in Estonia))
found: Vivaldi, Antonio. Salmi a due cori, 2002:label (Risto Jooest, countertenor)
found: Email from Risto Joost's personal assistant, April 8, 2021(the countertenor on Salmi a due cori, 2002 is Risto Joost)
found: Wikipedia, April 8, 2021(Risto Joost; born June 22, 1980, Tallinn; studied at Tallinn Academy of Music (1986-1998), Estonian Academy of Music and Theatre (1998-2002), University of Music and Performing Arts, Vienna (2002-2003), and Royal College of Music, Stockholm (-2008); male) - https://en.wikipedia.org/wiki/Risto_Joost
