1766 Mobile eXtensible Music Format Mobile XMF Audio XMF is a family of specifications created and administered by the MIDI Manufacturer's Association. An XMF file contains one or more existing files such as Standard MIDI Files, Downloadable Sound (DLS) instrument files, WAV files, or other digital audio files to create a collection of all the resources needed to present a musical piece. Mobile XMF was developed specifically for mobile phones, and supports SP-MIDI format SMF files as well as Mobile DLS content. 1 Digital Preservation Department / The National Archives 14 Sep 2016 14 Sep 2016 audio/mobile-xmf MIME fmt/961 PUID mxmf File extension 1318 Mobile XMF BOF: magic: XMF_ version: 2.00, XmfFileTypeID: 0x00000002 Specification: https://www.midi.org/specifications/item/xmf-specification-all 1 Absolute from BOF 0 0 584D465F322E303000000002 Has priority over 1513 Extensible Music Format