The second solo album was called Vertical Invader, and featured only Masi along with drummer John Macaluso.
In 1998 Masi published the first album of a successful trilogy dedicated to three of the most famous classical musicians in history, entitled In the Name of Bach.
Later, in 2013 the second album featuring a heavy electronica influence was titled "Danger Zone" released on Grooveyard Records.
Also very relevant in Alex Masi's production are the two albums released under the moniker MCM, featuring John Macaluso on drums and the late Randy Coven on bass.
He has collaborated in the studio and live with: Chris Aable, Carmine Appice, Allan Holdsworth, John Macaluso, Randy Coven, Ray Gillen, Claude King, Steve Bailey, Frankie Banali, Shawn Lane, Joseph Williams, Robin McCauley, Ken Templin, Rudy Sarzo, Jeff Pilson, Briam McDonald, Jeff Scott Soto, Mark Free, Mark Boals etc.