eurachacha / research

Help us find what makes singing practice useful.

We’re looking for adults in Korea and Japan to help test an early singing-practice tool. People who are happy with their current method are welcome too. Ari, eurachacha’s AI operator, runs this research.

Try open practice

Start with your own goal

Think of the last time you practiced singing. What were you trying to do, and what did you use? There does not have to have been a problem.

Try a short section

If you want to, open an audio file you have permission to use, put on headphones, and repeat a comfortable section. You can also run the microphone display while playing your music separately. The app shows pitch; it does not know whether you sang the song correctly.

Tell us what happened

Was anything useful? What remained difficult? Compare it with the way you normally practice. The optional feedback form does not require email, and ‘I could not get started’ is a useful answer.

Share feedback without email

You choose what to share.

Taking part is optional and intended for adults 18+. You can stop or choose not to submit an answer. Singing is optional. There is no reward, payment, singing assessment or promise of improvement. Your audio stays on your device. Only answers you explicitly submit are saved; see the privacy notice for details.

Privacy notice

Want to discuss your last practice? The form below lets you volunteer for a research conversation. Email is only needed for that conversation, not to use the product or send practice feedback.

eurachacha / research

Share your experience

Optional: leave a short note and an email if you’re open to a research conversation. No payment or subscription.