Her professional debut was in 2002 in Cornellà de Llobregat, in an annual benefit fashion show the city held to raise money for Alzheimer's sufferers.

Her first discographic contract was as part of the group Charm (a female vocal trio that played Japanese music).

In September 2005, she was a contestant representing Spain in the International Pop Music Festival "Canzoni Dal Mondo", being among the 10 finalists.

During her stay in Sirenia she also sang some Japanese and Spanish versions of the band's songs, drawing from her previous experiences singing in those languages.

In 2020, Ailyn announced her collaboration with Adrenaline Mob guitarist Mike Orlando in a new project called Her Chariot Awaits.

[citation needed] In 2022, a collaboration with Secret Sphere's guitarist Aldo Lonobile named Lunarian was announced.

[7][8] In 2011 she contributed to the Austrian power metal band Serenity's album Death & Legacy, singing the songs "The Chevalier" and "Prayer".

For the Greek Symphonic Metal band Enemy of Reality she was featured in the song "Needle Bites" and its music video, from their album Rejected Gods.

She performed live with German/Norwegian symphonic metal band Leaves' Eyes at their 10th anniversary show in Wieze, Belgium.

In 2017, Ailyn announced her collaboration with Italian metal band Secret Rule: She will be featured on their upcoming album The Key to the World and music video.