What on earth? Baba who?
The only thing I know is Baba Yaga (a monstrous witch of the Slavic mythology, living in a hut with chickens' legs and floating around in a mortar)
Anatoly Liadov's orchestral picture Baba Yaga Opus 56
And this is Mussorgsky's Baba Yaga (from Pictures at an Exhibition)
"Nearly a decade since he first conceived the idea, Lyadov, the Oblomov of Russian composers, finally completed his three-and-a-half-minute tone poem Baba-Yaga in 1904. The archetypal Russian witch, Baba-Yaga is a small, gnomish creature whom Mussorgsky had previously depicted in music in "The Hut on Hen's Legs" from his Pictures at an Exhibition. Lyadov's "Picture from a Russian Folk-Tale" is set for large, late Romantic orchestra with numerous winds, brass, strings, a vast percussion section, and of course, the contrabassoon taking the witch's part. A pseudo-spooky evocation of the supernatural à la Dukas' contemporaneous Sorcerer's Apprentice, Lyadov's Baba-Yaga is clearly the basis of many of Hollywood's witches, but especially the Wicked Witch of the West from The Wizard of Oz with its shrieks in the woodwinds, its glissandos in the trombones, its chromatic runs in the strings, and its xylophone and bass drum."