Sa is a reference
In this singing context, shruti refers to the reference pitch used as Sa, or shadja. Sa names a musical reference; it is not permanently fixed to one piano key.
When C is the reference
C is Sa in this example.
When D is the reference
D is Sa in this example.
This is why two singers can use different drone settings and both sing Sa. When you record a practice setting, include the pitch label shown by the device, not only the word “Sa”.
What the tools can tell you
A drone gives a reference
It sounds the chosen pitch so you can listen and sing with it.
A pitch detector reads sound
A detector estimates the pitch it hears through a microphone. That reading alone does not choose a suitable practice pitch.
A drone helps you hear a reference; a pitch display can help identify a sound. Neither a preset nor a single detected note establishes which reference pitch will suit your singing across the material you are learning.
The shruti-box guide explains the controls and gives researched device and app options.
Where to begin with your teacher
Show the setting you use
If you already learn, bring your current drone setting and the name of your device or app. If you have no setting yet, say so.
Describe your experience
Tell your teacher what you have sung before and whether any part of the material feels difficult to sing comfortably. You do not need to calculate a vocal range before enquiring.
Try the material together
Ask your teacher to help you explore a reference pitch using suitable lesson material. Keep the exploration comfortable; do not force your voice to match a setting.
Record what you agree
Note the exact setting on your own tool and any instructions for practice. If something feels different later, bring that observation back to the teacher.
Common points of confusion
Is a louder drone a higher shruti?
No. Volume controls loudness. A pitch setting changes the reference sound’s pitch. Keep those two controls separate when you adjust your device.
Can I copy the setting in a recording?
You can identify or discuss a recording’s pitch, but that does not make it a recommended practice setting for you. Ask your teacher which reference to use for your lesson material.
Can an app find the right shruti for me?
A pitch detector may estimate a note you sing; a drone app plays the setting you choose. Use those readings as information for your teacher, rather than treating them as an automatic choice of practice pitch.
A small record for your next lesson
Keep the agreed setting with your notes
These notes stay on this page. Copy them before leaving; they are not saved or sent.
Sources & scope
- Riyaz: an introduction to sruti — used for the relationship between a singer’s sruti and Sa.
- karnATik: before your first lessons — used for the reference role of the drone and discussing pitch with a teacher.
- Device manuals and developer listings — tools and settings to explore.
Sources checked on 25 October 2026. The examples explain reference pitch; they do not assess your voice or prescribe a range. The worksheet is for your own notes and a conversation with your teacher.