Yma Sumac - The Voice Of Xtabay

Yma Sumac
Voice Of The Xtabay
Conductor: Les Baxter, Moises Vivanco
Capitol Records W684
1955

Available from online vendors so I will not be posting a sample. Presented here to share the cover art.

Sumac came from another planet. The Planet Of Super Awesome 50s Fun!

From the back cover: There is no voice like it in the world of music today," said Glenn Dillard Gunn of the Washington Times-Hearld. "It has a greater range than any female voice of concert or opera. It soars into the acoustic stratosphere, or it plumbs sub-contralto depths of pitch with equal ease. Such voices happen only once in a generation.

Taita Inty (Virgin Of The Sun God)
Ataypura I (High Andes)
Accla Taqui (Chant Of The Chosen Maidens)
Tumpa (Earthquake)
Choladas (Dance Of The Moon Festival)
Wayra (Dance Of The Winds)
Monos (Monkeys)
Xtabay (Lure Of The Unknown Love)
Inca Taqui — Chants Of The Incans
K'arawi (Planting Song)
Cumbe-Maita (Calls Of The Andes)
Wak'ai (Cry)
Incacho (Royal Anthem)
Chuncho (The Forest Creatures)
Llulla Mak'ta (Andean Don Juan)
Malaya! (My Destiny)
Ripui (Farewell)

Voices Of The Xtabay
Yma Sumac
Capitol DW 684
1955

Capitol's Duophonic reissue. Capitol reprocessed the mono version.

From wiki: Duophonic is a term used to refer to a sound process by which a monaural recording is turned into a kind of "fake stereo" by splitting the signal into two channels, delaying the left and the right channels by means of delay lines and other circuits, desynchronizing the two channels by fractions of a second, and cutting the bass frequencies in one channel with a high-pass filter, then cutting the treble frequencies in the other channel with a low-pass filter. The result was an artificial stereo effect, without giving the listener the true directional sound characteristics of real stereo. In some cases, the effect was enhanced with reverb and other technical tricks, sometimes adding stereo echo to mono tracks in an attempt to fool the listener.