### 5.6 Reporting bugs

If you have input that results in a crash or an erroneous output, then that is a bug. We try respond to bug-reports promptly, and fix them as soon as possible. For this, we need to reproduce and isolate the problem. Help us by sending a defective input file, so we can reproduce the problem. Make it small, so we can easily debug the problem. Don't forget to tell which version you use, and on which platform you run it. Send the report to bug-lilypond@gnu.org.

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