Mounting apparatus useable with instruments and mobile electronic devices are disclosed which may contain a base structure, an upper support structure and an intermediate member. The base structure may contain a lyre clip attachment plate configured to attach to a lyre clip, which may in turn be connected to a musical instrument such as a wind instrument. The upper support structure and the base structure may both be configured to be pinned in a fixed position along the intermediate member in a manner that can accommodate a significant variety of mobile electronic devices.