| Subject | English | Arabic |
| tel. | musical hold device | جهاز انتظار موسيقي |
| comp., MS | Musical Instrument Digital Interface | الواجهة الرقمية للآلات الموسيقية (A specification of the MIDI Manufacturers Association (MMA). The specification defines a protocol for describing music data, such as note on and note off messages; a file format for storing music data, called Standard MIDI; and a standard hardware interface) |
| el., acoust. | musical scale | مِقياس موسيقي |
| el., acoust. | standard musical pitch | تردد التوليف القياسي العادي |