1. hrasva mudra - gesture for short vowel. This can be overridden by other mudras like udātta. Hamsapaksha in kathakali.
2. ākāra mudra - for syllables ending in ā.
3. Tālavyadīrgha - mudra for long palatal vowels ī and ū. Bāņa in kathakali.
4. Aikāra mudra - for syllable ai. Similar to 3 but little finger rotated.
5. Oşțhya dïrgha - mudra for long labial vowels ū, o, au. Mukuļa in kathakali.
7. Anusvāra - mudra for short anusvāra. Muşți in kathakali.
8. Dīrghānusvāra - for long anusvāra.
9. Hrasvavisarga - for short visarga; mudrākhya in kathakali
10. Dīrgha visarga- long visarga; sūcimukha in kathakali
11. Prathamānta mudra - mudra when a word ends in 'first' consonant of varga (k, ch, ț, t, p).
12. ghoşa mudra - text is confusing. It appears to be for voiced aspirates gha, jha, ďha, dha, and ha.
13. Svarapūrvaka takāra - dental t with preceding vowel. Hand is supine for short vowel and pronated for long vowel.
14. Missing
15. Mūrdhanya - retroflex
16. ti or tithi- mudra for syllables ending with ti or thi.Mŕgaśirşa in kathakali
18, 19: nakāra and ņakāra mudras. IMO to clarify dental na vs retroflex ņa.
20. Akārasūchaka- I find this interesting. Mudra for a in doubtful sandhi. Examples:
Vidharmaņāyatraih RV 10.46.6 splits into vidharmaņā + ayatraih and
Naijan RV 1.63.1 -> na + aijan and not ejan.
Yathohişe RV 8.5.3 -> yathā + ohişe and not ūhişe. Expected samhitā form should really be yathauhişe.
21. Mudra for repha, vikāra, prakŕti and utpatti.
Vikāra or modification: indicates a change from retroflex to dental in padapāțha. dūđhyah -> duh dhyah; vŕşapāņāsah -> vŕşa pānāsah. Ņ becomes n.
Prakŕti - natural form. Clarifies initial gh, d, dh, n, r, ś or s is
Utpatti - when a sound is added in padapāțha. RV 10.11.5 cit kambhanena -> cit + skambhanena. Additional s.
23. Hrasvīkaraņa - when a vowel shortens in padapāțha. Vāvŕdhāte in samhita -> vāvŕdhate in pada.
25. Avagraha - mudra shown when a compound word in samhita splits in padapāțha. E.g. pra + śastaye.
26. Si mudra - shown when word ends with si, sī, se, sya or sva. Bhramara in kathakali.