The album "Siku Ya Bibi" was dedicated to a jazz musician known by what nickname?
Siku Ya Bibi (Day of the Lady): Siku Ya Bibi (Day of the Lady) is an album by saxophonist Charles McPherson, dedicated to Billie Holiday, which was recorded in 1972 and released on the Mainstream label. Billie Holiday:  Nicknamed "Lady Day" by her friend and music partner Lester Young, Holiday had a seminal influence on jazz music and pop singing.
"Lady Day"