However, his liberal use of chromatic notes within the pentatonic framework and his periodic lines based on Indian and Eastern modes allowed a considerable degree of fluidity in his solos.
2.
Strong evidence of tilted discs is seen in the systems Her X-1, SMC X-1, and SS 433 ( among others ), where a periodic line-of-sight blockage of X-ray emissions is seen on the order of 50 200 days; much slower than the systems'binary orbit of ~ 1 day.