Record the clips of what you want your callers to hear, then use an audio editing software to arrange the clips and add background music.
“It’s now playing on our telephone system – we’re VERY impressed with the quality. We’ll recommend you to anyone that asks." Dave Chapman, J+J Automation UK Ltd

An educated customer is your best customer. So, if you had their undivided attention, what would you want your customers to know? On hold marketing offers the perfect opportunity to talk about the latest solutions in IT security solutions, share your experience and certifications, and assure prospective customers that they have made the right call! In fact, your phone system is a powerful marketing tool for your business, allowing you to easily update your messaging with the season, advertise your support services, or highlight a few customer testimonials. Inform callers of the technology manufacturers you work with, your 24-hour support line, or what they can expect when they work with you. Build your credibility by sharing information about your industry awards, experience & certifications, and more. Reduce the frustration of long hold times by keeping callers engaged with informative content such as details on the latest VoIP systems and Cloud computing. Choose voice and music that compliments your brand and company values.
The problem, in my mind, is that every single one of these articles misses the point completely. Even if you implemented a call centre system that detected and automatically played someone’s all-time favourite music while they waited, a facility which is possibly not that far off, most music when played down the phone just sounds terrible. Butchering a song that someone actually likes is unlikely to improve the waiting experience.