A basis for the organisation and classification of ragas depending on the notes used
Thaat:
Kafi
Preferred time or season for playing
Time:
Midnight or any time during rainy
The most prominent note of a raga
Vadi
/
The second most prominent note of a raga
Samvadi:
, 
Categorization based on number of notes used in aroh and avaroh
Jati:
Containing 5 notes
Audav
-
Containing 6 notes
Shadav
Do not follow strict ascending or descending order of notes
Vakra
Emotions evoked by the raga
Mood:
Gambhir (Serious), Shant (Serene, Peaceful), Shringar (Romantic)
Megh Malhar is a rainy season raga. Many times Megh and Megh Malhar are used as synonyms, though there is a subtle difference between these two ragas. This raga incorporates the
Style of presenting based on another raga
ang
s of Megh and Malhar. Megh Malhar is of three/four types depending on the notes used. The most commonly heard type omits only and uses
A flat note
komal
 and . Komal gets used only in
Descending movement of notes
avaroh
 while komal is used both in
Ascending movement of notes
aroh
 and avaroh. In the other type, komal is not used and only phrase is used to suggest Malhar. Some artists use both forms of as in Malhar. Some scholars mention one more type in which is used, which is rarely heard.