This presentation focuses on a Mobile Phone Orchestra (MPO) performance platform, - mobilephoneorchestra.com – developed for performances of polyphonic electronic music – to be performed as an orchestra. The aim has been to create a kind of philharmonic orchestra for electronic sounds that uses smart phones as instruments. Mobilephoneorchestra.com is developed for non-musician participation, with the aim to easily fascilitate a mobile phone orchestra performance including many performers, but also to new performance target groups into the world of contemporary art music. Mainly youths between 13-17 years old have been addressed as performers in various project, also since they generally could be seen as experts on handling the smart phone interface. Animated notation in multiple parts is giving performance instructions to the mobile phone orchestra during the performance. In this videopresentation I have highlighted a concert performance in Slovenia from 2020 where two compositions of mine including a mobile phone orchestra were performed. Voltage Controlled String Orchestra, music for MPO (approximately 60: 15-year-old non musicians), Slovenian Philharmonic String Orchestra and Soloist (Analog Synthesizer). Voyage One, music for stand alone MPO. This presentation shows some of the artistic possibilities and limitations with the MPO platform, from a composer perspective. Furthermore, an evaluation based on the experiences of the participating MPO performers at the Voltage Controlled String Orchestra performance, is presented.