Creating a midi file can be considered a copy, or a derivative work, and playing it in public would be a performance. Copying and performing both require permission from the copyright holder.
Only if the song is a free domain song, such as "Happy Birthday" or "God Save the Queen". Popular songs, such as songs which are owned and copyrighted by an artist can only be used with written consent from the copyright holder, unless your organization holds an ASCAP license, in which case, the ASCAP logo must appear on the page containing the music which is being used under the ASCAP license you hold.
Many MIDI files on the internet are free and legal to download. Theoretically, a MIDI version of a popular song could be called a "derivative work" and be considered a form of copyright infringement, but I doubt that anyone cares that much about MIDI files anymore.
A MIDI controller sends MIDI note messages to another device by MIDI cables or USB to a computer. If it is strictly a MIDI controller with no onboard sounds, it will have to connect to another MIDI device or computer to make sounds.
This has led to copyright battles and fears of lack of work for live-performance musicians.
No. All modern synthesizers have MIDI, but most can produce many different sounds at the same time without any other MIDI device connected.
Yes, you can do audio editing, beat creation and mixing without a MIDI keyboard. You won't be able to perform using virtual instruments, though.
You can't do that :D
MIDI files are a convenient way to add music to a multimedia presentation without needing to occupy a lot of file space.
Audacity can be used to convert a MIDI track to an audio file, therefore eliminating any editable MIDI data. You can simply keep the MIDI file and open it directly in FL Studio and edit any property of the MIDI, including exchange them for better sounding synthesizers and real audio samplers. FL is, after all, a digital audio workstation specifically designed for sequenced music. Loading a MIDI file will split the tracks for you and you can export any one of them individually as a MIDI or audio file.
No. Line in is for audio, but midi is for midi.
midi = noon, midday après midi = afternoon
MP3 answer is MIDI