among the other members mentioned above; which instrument was played by the first one?
Bass guitar
Tim Commerford
Timothy Robert Commerford (born February 26, 1968) is an American musician, best known as the bassist and backing vocalist for the American rock band Rage Against the Machine (1991–2000; 2007–2011; 2019-present) and supergroups Audioslave (2001–2007; 2017) and Prophets of Rage (2016–2019). Since 2013 and 2015, he has also been the lead singer and bassist of the bands Future User and WAKRAT.

He was ranked eighth on "Paste" magazine's list of "20 Underrated Bass Guitarists" in 2014.
who is the lead singer of rage against machine Zack de la Rocha where is it based? Los Angeles, California what is the genre of this band? Rock can you name some of its successful albums or songs? "Evil Empire" , Battle of Los Angeles" to name a few album is the above singer founder of this band? No, he is the vocalist can you name the other members of the band? Tim Commerford, Tom Morello, Brad Wilk what did the vocalist do before joining this band? He joined the straight edge band Hard Stance
wiki:19497408
Tim Commerford [SEP] Introduction
Timothy Robert Commerford (born February 26, 1968) is an American musician, best known as the bassist and backing vocalist for the American rock band Rage Against the Machine (1991–2000; 2007–2011; 2019-present) and supergroups Audioslave (2001–2007; 2017) and Prophets of Rage (2016–2019). Since 2013 and 2015, he has also been the lead singer and bassist of the bands Future User and WAKRAT. He was ranked eighth on "Paste" magazine's list of "20 Underrated Bass Guitarists" in 2014.