Ableton live
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Very complete software, ideal for DJs and creative people in general
Go to website: ableton.com
Fruity loops (Fl Studio)
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Modular virtual studio, it is the most popular software for music creation
Go to website: image-line.com
Cakewalk Sonar X2
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Sonar X2 is a virtual studio with very advanced editing tools, there are 3 versions, producer, studio and essential
Go to website: cakewalk.com
EnergyXT
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Complete music creation software, lightweight and portable (you can put it in a USB key for example)
Go to website: energy-xt.com
Orion
Orion is an original music creation software, its interface is very simple, very clear, we see immediately how it works. This is a good sequencer for people who do not have much time to devote to music.
Go to website: synapse-audio.com
Sony Acid Music Studio
Good studio for music production, very easy to understand, very simple interface...
Go to website: sonycreativesoftware.com
Magix Music Maker
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Start to work immediately, no knowledge needed, "music maker" is a perfect software for beginners
Go to website: magix.com
Adobe Audition CS6
Audio processing and music production software (recording, restoration, working with effects, music création...)
Go to website: adobe.com
LMMS (FREE)
LMMS (Linux MultiMedia Studio) is a free home studio for music creation (avilable for Linux and Windows)
Go to website: lmms.sourceforge.net