By Pot* Sen offSTAFF WRITEROP RECORDS ... Wax will be spilling in epic proportionsduring the next month or so,as record manufacturur* will 1» releasing a bumper crop ofnew albums.These include: (all dates areapproximate) The Doors (Julyir/Elektim)f Jlmt Hwidrrlx (July30/Reprise); Jeff Beck Group (July M/Eplcfe Buffalo Springfield (July 30/A t c o); Grateful Dead (July 0/R apri »e)j Jefferson Airplane (July 19/Vlcfcor); Rolling Stones (July 30/London); Dig Brother (Aug, 1/DOUBLE atalum, Columbia); Bine Cheer(Aug. 1 /Phillips); Who (Aug. 18/Docea); Mother (TRIPLE Album/ Sept* 1-T); Coming.... BeetleS| DyliH| Leonard N! may's GreatestHits, _Two albums released last week worthy of mention are; MAerial Ballet*1 by Nilsson and 1 ■Undeatl11by 10 Years After, I suppose Nilsson** recent frtfndHMp withthe Beatles will Injure him of many album sales, but bis merit as singer - co m poa e r - -writer should be the dominant criteria. He's fantastic in Us vocal range mttl his lyrics are quite nice,me second almoin by the uritisiigroup, to Years After, is a ,#IIver' record of their performance at Kluufcs Kleek Railway Hotel* London It's a great blend of contemporary roefc-jazzp particularly on such numbers as Wcmdy He r m an's1 *'Wnode hoppersHim*AROUND TOWN ... Weekly jam sessions are coming to LoA Angeles. So rting tonight, at themusicians appearingaround town muUctfell* fromgroups, will be Invited to drop -Say and Join in free form Jams. Tine public Is United.s- I pnarpa.C/emphsfo by P§*« S*nflWhat do you get when you mix Southern Comfort with honey?You gel Janis Joplin's favorite between*meaIs snack, that t whet! The energetic Miss Joplin will appear wifK her back dip group, Big Brotl^r, this weekend *t Kaiiedqscope^