Tough audience here. Let me add to the thread. Being on overnights on a tiny station that no one in town even knows about, and few can hear clearly at night outside the !-405/!-90 interchange is not going to prove anything about the viability of a format. I think earlier comments about pre-Beatles music being only for dead people is ill-advised. There are plenty of people who enjoy and hunger for music from the "great American songbook" and other standards - by the big names of the past, and some of the newer talents who include such songs in their repertoire. And there are other big names who are still recording music who just don't get airplay anymore on the hop-hop and country formats that have an audience who's probably watching TV, after giving up on radio.
Do that, have genuine personalities who won't rely on giving their name, call letters and IDs every time they open the mic, but can converse and be to the point, and find a decent signal that's engineered to make the music sound good, not just "loud," (I find KIXI's processing is overmodulated and fatiguing), and then I think you'll be off to a good start.
Just because someone somewhere "executes" a particular format doesn't prove its worth. There are a lot of factors to be considered when the advertising accounts don't suddenly start to pour in on their own. A death-match rivalry with your competition won't get you far, either. Just do it better, sound sharper, include some real "wow" factors every hour, and everybody enjoy what they're doing, whether on air or behind the scenes. Plus, budget for some promotions targeted to the people you're trying to reach, and give it more than a few months. Eventually, you should have something that works to attract listeners and local advertisers.