The only known songs to reach across dimensions are Gate songs. And that's simply because Doug hasn't thought things trought completely. With A Little Help From My Friends was shown to reach across dimensions and grab a little bit of Hexe's persona in DW II, after all. Not directly - just as a second-order effect that involved Doug's belief in the song's primary effect - but it still happened.
As for Radioing Out, I get the distinct impression that it only works on dead people. Communicating with the dead by radio is a nifty ability (and may even be useful in the Harry Potter Step), but it won't help Doug get in touch with Maggie...
--
Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."
- Michael Ignatieff, addressing Stanford University in 2012
As for Radioing Out, I get the distinct impression that it only works on dead people. Communicating with the dead by radio is a nifty ability (and may even be useful in the Harry Potter Step), but it won't help Doug get in touch with Maggie...
--
Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."
- Michael Ignatieff, addressing Stanford University in 2012