====== Topics ====== The special session invites original research on all aspects of singing synthesis. Authors are strongly encouraged to address the Fill-in the gap challenge. Topics includes: * Analysis of singing * Grapheme to phoneme conversion and linguistic aspects lyrics synthesis * Prosodic aspects of singing synthesis * Voice quality in singing * Signal processing for singing * Voice transformation for singing * Voice quality in singing * Voice personality in singing * Evaluation and assessment of synthetic singing quality * Singing instruments * Text-to-chant systems * Multimodal singing synthesis * Multilingual singing synthesis * Social aspects of singing synthesis