"+" sv list of symbols

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Menlo; color: #000000; background-color: #ffffff}span.s1 {font-variant-ligatures: no-common-ligatures}

q)c:abq)type c 11h q)"+" sv c 'type [0] "+" sv c ^ q)+ sv c’ [0] + sv c ^q)d:("aa";"bb")q)d"aa""bb"q)"+" sv d"aa+bb"

how can sv be used with symbols? or does it only work with chars?

http://code.kx.com/wiki/Reference/sv
"If Y is a list of strings, and X is a character or string, it joins the strings in Y, separated by X: "

q)“+” sv string c:ab