Auditory researchers have developed various non-speech cues in designing auditory user interfaces. A preliminary study of “Lyricons” (lyrics + earcons) has provided a novel approach to devising auditory cues in electronic products, by combining the concurrent two layers of musical speech and earcons (short musical motives). The purpose of the present study is to introduce iterative design processes and to validate the effectiveness of lyricons compared to earcons, whether people can more intuitively grasp functions that lyricons imply than those of earcons. Results favor lyricons over earcons. Future work and practical application directions are also discussed.