Audacity

Free, open-source audio recording and editing: not a full DAW, but the zero-dollar way to record music and learn the basics of audio engineering.

Best for: Quick free recording and audio editing.
Skip if: You want everything that comes with a full DAW including MIDI or full mixing and mastering features.
First move: Record one song idea properly today.
Reach: Industry-wide
When: Useful from day one.
Based in: United States