After the first version of "Goseedup Music" was enthusiastically received by everyone and feedback was provided, I have added 7749 features as follows:

For those who haven't read the initial article, it's a tool for listening to music that is 100% Creative Commons (can be played in cafes or while streaming without copyright worries, with the license for each song clearly stated), mixed with white noise, along with a bunch of tools to help focus on work. Specifically:

FOR OFFICE/IT PEOPLE

• Focus: Pomodoro timer + session history
• Breaks: scenery watching + bird flying, counting sheep, 20-20-20 eye rest, stretching guide
• Common IT utilities, all available here, saving you the search
• Sleep aid: music/rain that gradually fades out, in the morning gentle bird songs to wake you up
• Reminders: drink water, rest eyes, stand up and stretch...
• Group sticky notes: create a common notes board, share the link for the entire team to stick notes
• Heart corner: photo pinboard + common messages for 2 people / small groups (drag and drop, rotate, drop hearts, comment)
• Group expense sharing: enter expenses, automatically calculate who owes whom, share link for the whole group to see, tick "paid"
• Miscellaneous tools: create QR (link / wifi / VietQR transfer), compress & change image format, count days, convert lunar-solar calendar, count characters

FOR CAFES / STORES

• Auto play schedule: set opening and closing hours, music automatically changes by time and then turns off
• Insert store announcements / jingles into the music
• Group listening: the whole room listens to the same song from afar, owner changes music/background/effects and everyone follows, with a common photo pinboard + "heartbeat" for the whole room

LISTENING TO MUSIC

• ~175 CC songs, pre-arranged playlists that change according to time slots (morning / noon / afternoon / evening)
• Mood playlists: deep focus, lofi, jazz, meditation - yoga, gym, motivation, travel, soothing piano, brainwave, even prenatal teaching for expectant mothers
• Repeat one song, set timer to turn off, beautiful background scenery changes with the music + effects (rain, fireflies, flying leaves...)

MIXING NOISES (self-generated, doesn't consume data)

• Rain: drizzle / moderate rain / heavy rain / thunderstorm with lightning (lightning flashes across the screen) / separate thunder and lightning
• Fireplace, ocean waves, morning birds, hushed coffee shop, brown noise
• Binaural brainwave, 528Hz frequency, and some fun ones: footstep sounds, spooky noises to scare you
• Mix many types at once, automatically save the adjusted levels

OTHER

• Can be installed like an app (PWA), works on both phone and computer
• Light/dark mode, bilingual Vietnamese - English
• Sync multiple devices via link, no login required
• Music wave (visualizer) viewable in full screen

Link: nhac.goseedup.com (opens website directly, clicking "Add to Home Screen" turns it into an app)

Feel free to use it, I have unlimited hosting for images so in the heart corner you can create many links with multiple loved ones. If you find it useful, please share it. Thank you all.