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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
if you're using the official last.fm app, only songs that have been added to your AM library will scrobble. depending on your device/OS, there's a few third-party apps/scrobblers that support scrobbling of non-library tracks. if you're on iOS: Marvis Pro (an alternative AM player with built-in scrobbling support - here is a full list of features), and QuietScrob. If you're listening on MacOS: NepTunes for Mac. If you're using the AM web player (MacOS/PC), the Web Scrobbler browser extension can also scrobble non-library tracks.