MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Schism Tracker - Schism Tracker is a free reimplementation of Impulse Tracker, a program used to create high quality...
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
OpenMPT - OpenMPT is a popular tracker software for Windows.
PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.