A portable musical keyboard stand having auxiliary support arms, including identical parallel right and left side frames, each including an upright member, a rear leg disposed at an angle relative thereto, and a brace attached between a bottom end thereof and a lower end of the rear leg. Horizontal crossbars, including a lowermost crossbar, are continuously attached between the frames. Cross-beam members have a top side attached to the lowermost crossbar proximal a center point thereof and a bottom side attached to the respective rear leg. At least one support arm member is attached to the outer side of one of the frames parallel to a respective brace. A pair of L-shaped mounting brackets is attached to each of the horizontal crossbars and the support arm member at an angle thereto to retain a portable musical keyboard and a sound mixer thereon, respectively.