Ah I can see you are a knowledgeable guy alright 😉
With Sqlite3 you should eb on the safe side.
On slower machines there have been problems noticed when running in debuglevel 9 with pthreads exiting.
As your library consists of about 1000 songs, thats surely no problem. I’ve seen databases of 40K songs on embedded devices running smoothly. So you maybe right about suspecting the pthreads library.
I don’t know which particuliar pthreads version I’m running on my slug though, since there’s no getconf available.