Lets try to gues how MP3directcut work.
The right is, that I can remove and move block of MP3 files when it is loaded. For example, I can copy part of MP3 audio data to clipboard and paste it to other part of loaded other MP3 file. And there is no long time while working by this way. So MR Pesh must use some very smart approach. When I choose save all function, data are stored to other file. Other temporary file is being created.
Yes, volume function is being used also if user choose it.
May be, that somebody have invented several complex mathematical formulas which can remove data of MP3 files without decompress it. Sure, some ststrange sound can happen, if user cut some part of active sound, but it is also possible when using audio editors which open MP3 file and decompress it.
I must start from The most simple steps.
How to detect key presses while using Android unit And PPCJVM ANdroid JVM target mode. To know, if user have pressed left arrow, right arrow on his external bluetooth keyboard. Next event will be based on GUI element presses detection by using onwievclick procedure. So condition blocks will assign two various events. From Bluetooth keyboard or other keyboard. The disadvantage of my desire is The fact, that I must always unhyde keyboard so other commands will detect keyboard presses, so keyboard will interfere with app GUI on The screen. But there is no other way.

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