My comfort food when I am soldering interconnects is "Silver" solder.Old one that still works is a comfort.
I have a good stash of it (meaning "old)
I would call that a blessing... but that is my imo and respect that ymmv....The biggest curse in audio is our age...
... "...the Sn-Ag-Cu ternary eutectic melting point (217 °C) is below the 22/78 Sn-Ag (wt.%) eutectic of 221 °C and the 59/41 Sn-Cu eutectic of 227 °C. Those 10 degrees may be important... "Also the higher temperature required makes it possible that certain components could sustain damage if the heat is applied for too long a duration.