7YearsAn:d=4,o=6,b=140:8a_5,8a5,g5,g5,g5,8a_5,8a5,f5,f5,f5,8d5,8f5,g5,g5,f5,d_5,8f5,8g5,8p,f5,8p,8a_5,8a5,g5,g5,g5,8a_5,8a5,f5,f5,f5,8d5,8f5,g5,g5,f5,d_5,2f.5