@mire777, try something like...
var similar = "Howard Hewett,Keith Washington,Jeffrey Osborne,Miki Howard,Freddie Jackson,Gerald Levert,Lalah Hathaway,Phil Perry,Chanté Moore,Anita Baker,Eric Benét,Atlantic Starr,Mint Condition,Johnny Gill,Regina Belle,Stephanie Mills,Kem,Karyn White,Angela Winbush,L.T.D.,LeVert,Kindred The Family Soul,Frank Mccomb,Rachelle Ferrell,Najee,Boney James,The Whispers,Peabo Bryson,After 7,Carl Thomas,Gerald Albright,Patti LaBelle,Troop,Al B. Sure!,Kenny Lattimore,Patti Austin,George Howard,Tevin Campbell,Rahsaan Patterson,Norman Brown,Jaheim,Jonathan Butler,Dave Hollister,Kirk Whalum,Teena Marie,Pieces Of A Dream,Silk,Hil St. Soul,Walter Beasley,Ledisi";
var arr = similar.split(",");
var query = "";
for (var i = 0; i < arr.length; i++) {
query += "artist HAS " + arr[i];
if (i < arr.length - 1)
query += " OR ";
}
i've not tested fb.CreateAutoPlaylist to see how long the query strings can be.