According to Wikipedia, “Synthetics Plastics Company or SPC of Newark, New Jersey was a plastics manufacturing company that made various items made of plastic including children’s records and budget music albums.”
Around the mid-1960s, the label released a series of easy listening albums credited to the Sunset Strings, always with a photo of a dreamy young woman on the cover. Each of the titles is set in Photo-Lettering’s Jeremy. It’s always the boldest weight, but sometimes it’s used with condensed and/or slanted letterforms.
The formal script for “Sunset Strings” is either an unidentified typeface or custom lettering.