How to fix midi timing sync in Sonar

Figure out how far you keyboard hits are ahead of the beat, then go to Preferences > Audio > Sync and Caching > Full Chase Lock (turn on) > Timing Offset (msec): set to your timing difference. Mine is about 100.0 ms. Some people say it should be the same as the Total Roundtrip latency reported for your ASIO settings, but I have found it to be about 25ms more than that.

AWS Windows AMI

You create a Windows AMI on AWS by choosing "Create Image" on your instance (you cannot create one from a snapshot, it will boot as Linux). If you only have a snapshot, create it as a volume. Then create a similar instance if you have the original AMI you used to build your server, stop it, remove the drive, and the re-attach your root drive as /dev/sda1

Fix a bluetooth mouse disconnection problem using one weird trick

If you connect a bluetooth mouse (and maybe other bluetooth devices) to your Windows 10 machine, chances are you'll love it. Then within a day or two it will start to drive you crazy. Why? You'll start to notice it getting disconnected at odd times. At these times you may be tempted to try to reconnect it or fiddle with your settings. Nothing you do will work. Then suddenly it will reconnect again for no apparent reason.

So what's happening? Your computer is trying to save energy (whether you're plugged in or not). So type "Device Manager" where it says "Ask Me Anything". Click top open Device Manager. Then find "Intel Wireless Bluetooth" (you may have a different Bluetooth wireless service manager, depending on your machine). Right click that, click "Properties" from the popup menu, select the "Power Management" tab and uncheck the checkbox marked "Allow the computer to turn off this device to save power". Click OK. That's it, your troubles are over.