Does Sylvia Chang only look at popular albums?
No. The song list,country of issue,record company,cover condition,and whether there is a complete lyric sheet will all affect the valuation.
Can Sylvia Chang's LPs be valued together with other Taiwanese female singers?
Yes. Works by female singers from Hong Kong and Taiwan such as Chyi Yu,Tsai Chin,and Teresa Teng can be valued in the same batch as Sylvia Chang's LPs.
Do I need to play and test them first?
Not necessarily. You can first take photos of the disc surface condition and the record label; if there are obvious problems with the disc surface,then supplement with a description as appropriate.