nanananana

Play the Batman theme song from your terminal without any external dependencies!

Installation

npx nanananana

No installation required! Just run the command above to play the Batman theme.

Features

• Plays the classic "Na na na na na na na na BATMAN!" theme
• Uses a full range of notes including sharps/flats
• Piano-like sound with proper Attack-Decay-Sustain-Release envelope
• Implements gradual piano-like fading for notes that mimics real piano acoustics
• Supports sequenced music patterns
• Features alternating patterns that simulate multi-channel playback
• Uses music theory principles to create clean, non-vibrating chord sounds
• No external dependencies required to play sounds
• Works on macOS, Windows, and Linux
• Displays a cool Batman logo
• Seamless note transitions with no audible gaps between notes

Command Line Options

• npx nanananana - Play the classic Batman theme
• npx nanananana --basic - Play the basic piano-style version without extra features
• npx nanananana --piano - Demonstrate piano-style playing with independent hands
• npx nanananana --help - Show command line options

How It Works

This package uses Node.js built-in capabilities to play sound:

• On Windows, it uses PowerShell's [console]::beep()
• On macOS, it generates WAV files on the fly and plays them with afplay
• On Linux, it attempts to use the terminal bell or aplay when available

For chords and multi-note playback, it implements:

• Proper harmonic synthesis that mimics the way piano strings resonate together
• Piano-like envelope shaping with realistic attack, decay, sustain, and release phases
• Independent left and right hand parts with different note durations
• Gradual fading of notes that simulates real piano acoustics
• Detailed overtone generation based on musical intervals

For multi-part sequences, it uses carefully timed patterns with silences and alternating notes to create the impression of multiple tracks playing simultaneously, while maintaining pristine audio quality.

License

MIT