From the album Unison:

From the album Deeper:

From the album Crossing and Blending:

Maria also appears on the following recordings:

Milán - Time
Milán - Milán and Remixes
Milán - Voices (Single)
Milán - You (Single)

Lovecat - The Great Catsby ('I don't buy it')
Lunatic - Begin at Midnight ('Compliance')
Mark Murphy - Slip Away
David Bronson - Questions
Dan Weiss - Fourteen
Mesta Bish - Kaley Victoria Rose
David Bronson - The Long Lost
Anne Mette Iversen - Poetry of Earth
David Bronson - Story
Samir Zarif - Starting Point
Lars Dietrich - Breek De Grond
Donald Vega - Tomorrows
Mark Murphy - To Find You There
The Mahavishnu Project - Return to the Emerald Beyond