Think of the time during which your business phone line has anyone on hold as an opportunity. Leading message/music on hold (MOH) systems help ensure you don't lose current and potential customers or clients during poorly utilized moments on hold.
This brings up the ever-present question of appropriate branding for your business. At a funeral home, Green says, you don't want an upbeat pop song, for obvious reasons. Mark Malekpour, who works at Beatsuite, a music library which sells a variety of songs specifically for hold systems, says that companies too often want popular music. "For an insurance company, you don't want something from Queen or U2," he said. "When you're choosing music for an insurance company, it shouldn't feel happy or feel good or lighthearted, because insurance is something you have to have, and you want to think, 'These guys get what insurance is all about.' " (Beatsuite's bestselling hold song is called "Inspiring Innovation," which is tagged as: "Success, achievement, and trustworthy.")

Solo guitar and piano music can also be decent choices provided you avoid songs with extremes of high and low volumes and pitch. Most phone systems come with default tracks that, coincidentally, fall squarely into these categories. If you’d like something a bit different then you can find plenty royalty-free tunes available to purchase online (they’re not all that terrible), but remember you'll need to pay for a PRS license if you want to make use of tracks by a recording artist.
Of course you’ll wait. You don’t have a choice. While you are waiting, take the opportunity to wrap your phone in strips of masking tape to give it the look of Eddie Van Halen’s famous “Frankenstrat” guitar.