Learn to decode the phrasing of African-descent music with RTS - a unique system of shifting between cut time and 6/8! Stretc h your playing abilities with complex and stylistically challenging rhythms. Mambo cha cha Samba Bossa nova Soca & Cumbia . On the CD Phil demonstrates applications of Relayed Time Shifting (RTS) as he plays along with his band Zumbadah-Asche w hich features some of Los Angeles' hottest Latin players.