The rest of the Top 10 are all familiar to current listeners of Top 40 radio.
But Radio Maryja's audience has shrunk in the past decade to no more than 2% of all current listeners.
"The Sunny Side of the Street," which draws on his Grammy-nominated album of the same title (Razor & Tie), is inspired by the era of his current listeners' great-grandparents.
7 Cups Of Tea recruited many of its current listeners through organizations like the National Alliance On Mental Illness (NAMI), Active Minds, a student group for mental health advocacy, Narcotics Anonymous and the Down Syndrome Association.
And though that's an attractive, alluring package for Microsoft devotees and Windows 8-purchasing newcomers to streaming services, it seems unlikely to deliver enough oomph to cause current listeners to renounce their favored services.
Yet for all the energy and fire in its outer movements, one can already hear the tart, mournful currents that listeners usually interpret as the cry of an artist under attack.
This band leader likes to keep things bubbling and interactive; soloists in his music are given their moments of prominence, but they're navigating choppy currents so that a listener is forced to listen to the whole group instead of just the main improviser.
As it is difficult to reach current victims directly, the listener village helps community members to identify them, complementing local initiatives focused on rescue and rehabilitation.
Yahoo's vice president for music, Dave Goldberg, said that based on the current number of Yahoo listeners and the average price attracted for terrestrial radio ads -- about $5 per thousand listeners reached -- the potential revenue is roughly $2.4 million a month.
For whatever reasons — changes in taste, a desire to expand their musical experiences, a lack of interest in current pop — middle-aged listeners continue to join the audience.
