Whitney Houston's mother unveils first new songs in a decade

Cissy Houston appears at the Apollo Theater in New York on May 6, 2011.

/ AP

(CBS/AP) Whitney Houston's mother has released a new album of gospel tunes, her first new music since her daughter's death and in more than a decade.

Cissy Houston's "Walk on By Faith" was released by Harlem Records on iTunes this week and includes songs such as "Living Shall Not Be In Vain."

Watch: Whitney Houston's mom breaks silence on daughter's death
Pictures: Whitney Houston 1963-2012

Harlem Records rep Bill Coyle said she started working on the album last year and musically arranged all four tracks.

Cissy Houston has kept a low profile since her superstar daughter died in February, giving just one interview.

Whitney Houston was 48 when she drowned in a Beverly Hills, Calif., hotel bathtub on the eve of the Grammy Awards. An autopsy showed cocaine played a role in her death.

Prior to her death, she filmed the movie "Sparkle" with Jordin Sparks. The film is due out this summer.