A sophisticated interactive music player built on MOC (Music on Console) and the chloop REPL framework that transforms audio listening into an intelligent, annotated experience. This library provides vim-style keyboard controls, timestamp marking, and persistent comment storage to help users deeply engage with audio content.

The core philosophy centers on active listening workflows where users can mark interesting moments, add contextual notes, and build searchable audio archives over time. Whether analyzing podcasts, studying music, reviewing recordings, or conducting audio research, mocp-cli reduces the mental overhead of navigating complex audio files by making annotation and navigation effortless.

The library integrates seamlessly with Redis-based data storage and the broader helper library ecosystem, enabling powerful audio workflow automation and cross-session persistence.

Install

Install the actual MOC player/server

sudo apt-get install -y moc

or

brew install moc

If you don't have docker installed, install Redis and start server

sudo apt-get install -y redis-server

or

brew install redis
brew services start redis

Install with pip

pip install mocp-cli

Optional Install yt-helper

A lot of what powers the cool interactive features are provided by the COMMENTS and FILES redis_helper.Collections defined in yt_helper.

Install with pip

pip install yt-helper

or

pip install "mocp-cli[extras]"

QuickStart

Calling mocplayer will start a REPL that will send commands to the running instance of mocp --server. Any arguments passed to mocplayer are assumed to be glob patterns that should be passed to the moc.find_select_and_play function.

# Start the interactive player with audio files
mocplayer ~/Music/*.mp3

# Or start with a specific directory
mocplayer ~/Podcasts/

Basic Controls:

• space - pause/unpause
• m - mark current timestamp for later reference
• c - show all comments/marks for current file
• i - show info about currently playing file
• n - next file in playlist
• p - previous file in playlist
• h/l - seek backward/forward (5 seconds)
• H/L - seek backward/forward (30 seconds)
• ←/→ - seek backward/forward (1 second, arrow keys)
• j/k - volume down/up
• ↓/↑ - volume down/up (arrow keys)
• f - find and play audio files in current directory
• F - find, select, and play audio files in current directory
• - - add timestamped comment with custom text
• q - quit
• Q - stop MOC server and quit

Advanced Features:

• J - jump to a previously saved mark
• C - browse and play most-commented files
• R - browse and play recently added files
• Ctrl+a - start jumploop with first 62 marks selected
• e - edit timestamp of existing comment/mark
• d - delete selected comments/marks
• D - delete current file and remove all associated data

Colon Commands:

• :seek N - seek forward/backward by N seconds
• :go timestamp - jump to specific timestamp (e.g., :go 1h23m45s, :go 2:15:30)
• :jump - jump to a saved comment or mark (same as J)
• :jumploop - start interactive mark navigation session
• :most_commented [limit] - browse most-commented files (default limit 62)
• :recent_files [limit] - browse recently added files (default limit 62)
• :delete_comments - select comments/marks to delete
• :delete - delete current file and associated data
• :edit_timestamp - edit timestamp of existing comment/mark
• :find pattern1 pattern2 - find and select files by glob patterns

What you gain: Transform passive audio consumption into an active, searchable knowledge base. Mark key moments while listening, add contextual notes, and build a personal audio archive that becomes more valuable over time. Never lose track of important audio moments again.

API Overview

Interactive Player Interface

Core Player Class

• Player - Main interactive REPL for controlling MOC player with vim-style keybindings
  • Inherits from GetCharLoop for single-keystroke efficiency
  • chfunc_dict: Ordered dictionary mapping keys to (function, help_text) tuples
  • name: Collection name for Redis storage ('mocp')
  • prompt: Display prompt ('mocplayer> ')
  • input_hook: Function to handle timestamped comments via - input
  • pre_input_hook: Function to capture current timestamp context
  • break_chars: Characters that exit the loop (['q', 'Q'])
  • Returns: Interactive session (call with Player() to start)
  • Internal calls: GetCharLoop.__init__(), moc module functions, COMMENTS collection

Player Control Methods (Colon Commands)

Navigation and Seeking

• seek(num) - Seek forward or backward by specified seconds

  • num: Number of seconds to seek (positive=forward, negative=backward)
  • Returns: None (updates playback position)
  • Internal calls: moc.seek

• go(timestamp) - Jump to absolute position in current file

  • timestamp: String in formats like '3h4m5s', '2:15:30', '300s', '300'
  • Returns: None (seeks to position)
  • Internal calls: moc.go

Comment and Mark Navigation

• jump() - Interactive jump to saved comment or mark

  • Returns: None (opens selection interface for saved marks)
  • Internal calls: jump_to_select() function

• jumploop() - Start interactive navigation session between marks

  • Returns: None (starts unbuffered navigation loop through selected marks up to 62)
  • Internal calls: jumploop() function

File Discovery and Management

• most_commented(limit=62) - Browse and play most-commented files

  • limit: Maximum number of files to display (default 62)
  • Returns: None (opens selection interface for frequently annotated files)
  • Internal calls: most_commented_files_play_select() function

• recent_files(limit=62) - Browse and play recently added files

  • limit: Maximum number of files to display (default 62)
  • Returns: None (opens selection interface for recently added files)
  • Internal calls: recent_files_play_select() function

• find(*glob_patterns) - Find and select audio files by pattern

  • *glob_patterns: File/directory glob patterns to search
  • Returns: None (opens selection interface for matching files)
  • Internal calls: moc.find_select_and_play

Comment Management

• delete_comments() - Select and delete comments/marks for current file

  • Returns: None (opens selection interface for comment deletion)
  • Internal calls: delete_comments_select() function

• edit_timestamp() - Edit timestamp of existing comment/mark

  • Returns: None (opens selection interface for timestamp editing)
  • Internal calls: edit_comment_timestamp_select() function

File Operations

• delete() - Delete current audio file and remove all associated data
  • Returns: None (removes file from filesystem, updates FILES collection, removes COMMENTS)
  • Internal calls: delete() function