Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to sell music online [title] Check the audio quality. [step] If you haven't distributed music before, you'll want to make sure that your debut is as good as your music. Pay attention to the following things before you think about putting your music up : [substeps] Audio quality.

Ending1: Notice how that sound expressed when you first sing. Does that sound sound like if you were singing like nothing at all was happening? Musical quality. Ending2: If you hear a recording, make sure that there are no distortion or gaps in sound that could hurt sound quality. Feel the sound before you book your gig. Ending3: You want your music to sound good, right? If you've had it professionally recorded in the studio, the chances are good that it already sounds amazing. However, even if you have and definitely if you haven't, it's a good idea to play it and see how it sounds. Ending4: How loud do you want to be when your songs are played? You want a sound that buyers will remember. This means you should listen to the sound before you buy it.

Answer format: ending1/ending2/ending3/ending4