Todi lowers Re, Ga and Dha to komal and raises Ma to tivra; of the five swaras that can change, only Ni is left shuddh: Sa komal-Re komal-Ga tivra-Ma Pa komal-Dha Ni. It is an intense, searching scale, and its raags, sung in the late morning, are among the most profound in Hindustani music.
Its swaras
Raag Todi lives in its slow, plaintive komal Re and Ga, reached gently from below, while Pa is touched lightly and often passed by. Tivra Ma and shuddh Ni pull upward against the lowered swaras: the scale is all tension, and Todi's raags dwell in it.
All ten alankars in Todi, to hear in your Sa →
How bright it is
Three komal swaras and one tivra: two steps below Bilawal, beside Kafi and Bhairav.
On the circle of thaats
Todi sits between Purvi and Bhairavi. Raise its Ga and it is Purvi. But to reach Bhairavi two swaras must change, Ma lowered to shuddh and Ni to komal: here the ring breaks.
Its raags
Todi itself, often called Miyan ki Todi, and Gurjari Todi, which leaves out Pa, are raags of the late morning; Multani belongs to the afternoon, and Madhuvanti, by some teachers' placing, here too.
In the West and the South
There is no common Western mode with these swaras: it is a minor scale with its second and sixth lowered, its fourth raised and its seventh major.
In Karnatic music it is the 45th melakarta, Shubhapantuvarali. Don't confuse it with Karnatic Todi: that is the 8th melakarta, Hanumatodi, whose swaras are those of Hindustani Bhairavi.
Practise it
Tune komal Re and komal Ga close together, each against the tanpura's Sa: they lie a semitone apart, low in the scale, and it takes a steady breath to keep them so.
To make the ten thaats a daily riyaz, Meend has them ready: begin a riyaz of the thaats.
Questions
Which swaras are altered in Todi thaat?
Re, Ga and Dha are komal; Ma is tivra; Ni stays shuddh.
Which raags are in Todi thaat?
Todi (Miyan ki Todi), Gurjari Todi and Multani, among others.
Is Hindustani Todi the same as Karnatic Todi?
No. Karnatic Todi, the 8th melakarta Hanumatodi, has the swaras of Hindustani Bhairavi; Hindustani Todi's are the 45th melakarta, Shubhapantuvarali.