[yuan]

You might try naming your functions in Chinese. There's evidence showing that people take advantage of the face recognition machinery of their brains to read Chinese[1].

Coincidentally, native speakers of tonal languages (Chinese being one of them) also seem to have a higher chance of being pitch-perfect [2].

[1] Man-Ying Wang, Bo-Cheng Kuo, Shih-Kuen Cheng (2011). "Chinese characters elicit face-like N170 inversion effects". Brain and Cognition 77 (2011) 419–431.

[2] Deutsch, D., Henthorn, T., Marvin, E., & Xu H-S (2006). "Absolute pitch among American and Chinese conservatory students: Prevalence differences, and evidence for a speech-related critical period". Journal of the Acoustical Society of America 119 (2): 719–722.