Just to clarify:

Bat file:

nircmd setdefaultsounddevice "VG248" 1
nircmd.exe setsysvolume 35000
PlayAlarmVBS.vbs

vbs file:

Set WshShell = WScript.CreateObject("WScript.Shell")

Comandline = "C:\Users\Username\AppData\Roaming\Spotify\Spotify.exe"
WScript.sleep 500
CreateObject("WScript.Shell").Run("linktoplaylist")
WScript.sleep 3000
WshShell.SendKeys "{ENTER}"
WScript.sleep 100
WshShell.SendKeys "^{RIGHT}"