Picking a File With And Allowing More Than One Extension

I am using Taifun's Picking files from the SD Card with App Inventor solution. pick.aia Please see screenshot for what he says to do.  And it all works good, but is there a way to allow the user to select:

1. for audio files, mp3 or wma
2. for images, jpg or png

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Please provide more detail about what you want to do and a sceenshot of your blocks.

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In my app I am allowing the user to "upload" a file to the app.  Really, the app gets the URI of the file, and then the filepath is gotten with taufunFile.getFileNameblock.  The app will play the file later.

I want to allow the user to select (with their file manager) an audio file of any audio format.

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