ABSTRACT

The purpose of this research was to develop a set of vocal exercises to support healthy high-note formation in Thai female singers, whose voices are often more sensitive than male voices. The methods combinedqualitative and quantitative approaches with an experimental component. Experts in Thai linguistics and professional singing selected 23 Thai words from an initial pool of 189, based on articulators that avoid strain when sung at C5. Vocal exercises were arranged according to six consonant groups, combined with single and long vowels, and practiced using major scales from A3 to F4. The study was conducted as a case-by-case intervention over 12 sessions across six weeks. The results showed statistically significant improvement in participants’ high-note singing techniques, with average performance increasing from 39.33% (pre-test) to 73.33% (post-test). All participants successfully reached C5, and 80% (n=5) consistently exceeded C5 without vocal strain. The conclusion indicates that the developed exercises are effective for enhancing high-note singing in Thai female students. Suggestions include adapting the exercises for broader use across different linguistic groups and investigating long-term vocal health outcomes.

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