A metallophone structure configured for permanent installation in an outdoor environment is provided. The metallophone structure comprises a mounting structure. The metallophone structure also comprises a set of tone producing devices each coupled to the mounting structure by a fastener, wherein each tone producing device is configured to, when actuated, produce a sound frequency. The tone producing device is coupled in a location, by the fastener, as to reduce the effect on the quality of sound produced. The metallophone structure also comprises a mallet cradle configured to receive a mallet. The mallet is configured to actuate one of the tone producing devices. The metallophone structure is configured to be weather resistant such that each tone producing device still produces the sound frequency after an outdoor exposure period.