Not only does this week's LOTRO Beacon mention the Dulcet Tones show, it also lists a few sales that may be of interest to some:
Mordor & the high elf race are now available in the in-game store. Mordor costs 2495 LP and the high elf 1000.
Moria, Mirkwood, Helm's Deep, Riders of Rohan, and Rise of Isengard are all 85% off. That means you can get Mirkwood for $1.50, Helm's Deep for $6, and any of the others for $3. If you're missing anything it's time to stock up! Mordor is not on sale right now (which is no surprise).