Polish C64 user Patryk Seregiet did a nice add-on to Roland Hermans’ program PSID64. It’s for PC and it will take pretty much all .sid files and convert them to .prg file that you can load and play. Seregiet hacked it a bit and added a feature that loads the next sid file from tape after the previous finishes.
The actual beta works just barely. It doesn’t work with all files PSID64 program generates. But he will work on that issue as soon as possible.