With them she arrived at the Odeón studios in 1962 to record his first solo work, a single album that by adding its two sides, combines two different musical styles: an Italian tango (one of many) and rock and roll performed in the native language (I wanna live).

In his participation in the 1965 Viña del Mar International Song Festival, she competed with the song Como una ola, entangling herself in a sharp controversy with the authorities of the time for violating the recommendation not to perform his characteristic taquito kiss, a scenic gesture inspired by soccer technique and considered inappropriate to be performed by a woman at the time.

Her musical training was broad enough to include productions by dissimilar musicians, such as Lucho Gatica, her friend Violeta Parra and Los Huasos Quincheros.

Cecilia's recordings that bear Nouzeilles' signature were definitely the most significant of her career, and were characterized by rich orchestrations arranged by Odeón staff directors such as Luis Barragán and Valentín Trujillo.

Cecilia's artistic decline coincided with her removal from the Odeon since the second half of the decade at the hands of new youthful idols, among them José Alfredo Fuentes, in 1968 she decided to move to the CBS/Philips label and start recording songs that would give her career a more adult and international profile.

In 1970 she proposed progressive versions for songs by Violeta Parra Gracias a la vida and Víctor Jara Plegaria a un labrador.

«She —he declared in December 1984 to the Wikén supplement of the newspaper El Mercurio —is like someone majestic who disappeared into the darkness of anonymity due to a possible self-destruction.

Then Rubén Nouzeilles released two compiled albums in digital format, La incomparable (1995) and Un día te diré (1997), whose sales totaled more than 100 thousand units, revealing the popular roots of the songs.

[15][16] Many artists of younger generations have recognized her influence such as Álvaro Henríquez, Javiera Parra, Denisse Malebran and Mon Laferte among others.