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+ ++Since Mup requires its input in a fairly strict format, when a song is put +in, it may contain "typos." Generally, the error messages that Mup prints +will give you an idea of what is wrong. However, sometimes Mup is not able +to recognize that something is wrong until some distance beyond the actual +error. If you can't find anything wrong with the line that Mup lists as +being in error, try looking at the end of the previous line, or even earlier +lines. Some of the most common problems are missing semicolons and missing +quotes. Missing quote marks tend to be especially confusing to Mup, and may +cause many error messages, even though there is only one problem. +Another common problem that may cause a very large number of error messages is +forgetting to state "music" to enter music context. +
++Often listening to +MIDI output +is much more effective at spotting things like wrong notes and missing +accidentals than trying to find them by eye. +
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