m
- MAC address
- Macintosh file system
- macro
- MADI
- Madrigal
- Madrigalism
- magnetic storage
- magnetic tape
- magneto optical
- magneto-optical disc
- mag tape
- Major interval
- Major scale
- Major triad
- markup
- masking pattern adapted universal sub-brand integrated coding and multi-plexing
- Mass
- master
- Mastering
- Master use license
- Matrix (12-tone)
- Mb
- Mbps
- MCI
- MCI driver
- Mechanical license
- Mechanical rights organization
- Mechanical royalties
- Media Control Interface
- Mediant
- Media Player
- mega-
- megabit
- megabits per second
- megabyte (MB)
- megahertz
- Melodic interval
- Melodic minor scale
- memory
- Mensurstriche
- menu bar
- messaging
- meta-
- metal-oxide semiconductor field-effect transistor
- metatag
- Meter
- MHz
- microphone cable
- microphone pattern
- Microsoft Disk Operating System
- Microsoft Windows
- Microtone
- microwave
- mic splitter
- Middle 8
- Middle entries
- MIDI
- MIDI
- MIDI Manufacturers Association
- MIDI mode
- MIDI Show Control
- MIDI system message
- MIDI time code
- milli-
- MIME
- minidisc
- Minimalistic music
- Minor interval
- Minor triad
- Minuet and trio form
- mirror site
- Missa brevis
- Mix
- mixed-mode disc
- Mixer
- mixing board
- M-JPEG
- MMA
- MO
- Modal
- Modal mixture
- mode
- modem
- Modes
- Modes of limited transposition
- modulation
- Modulation
- Moll
- monitor
- Monitor
- Monody
- Moore’s law
- morph
- Mosaic
- MOSFET
- Motet
- motherboard
- motion compensation
- motion-JPEG
- mouse
- MoviePlayer
- Moving Picture Experts Group
- Mozilla
- MP3
- MPEG
- MPEG-1
- MPEG-2
- MPEG-4 part 10
- MPEG compression
- MPEG frame type
- MPEG-H part 2
- MPEG Layer-2 audio
- MPEG Layer-3 audio
- MPEG layers
- MS-DOS
- MTC
- mu
- mu-law (mu-law or micro-law)
- Multichannel Audio Digital Interface
- multimedia
- multimedia platform
- Multiphonics
- multiplatform
- multiplex
- multiplexer
- Multipurpose Internet Mail Extensions (MIME)
- multitimbral
- multiuser
- Musica ficta
- Musical Instrument Digital Interface
- MUSICAM
- Music publisher
- Musique concrète
- MUX
- Muzak