Possible accuracy issues in clock timer

Search the forum ("TaifunPlayer ogg"), then you will find e.g. this:

WAV is also loop-able, but why not using a compressed audio format (OGG).

As you can see and hear it works and I showed you all blocks. So where is the problem to try it yourself?

Btw, these are the 4 audio files (1.ogg, ..., 4.ogg):