To enhance my Foobar2000 music player I use the following components (plugins or extensions if you like).
This is an update for my earlier post Essential Foobar2000 plugins (update)

• Discogs Tagger
• MIDI decoder
• Lyric Show Panel 3
• Columns UI
• DTS decoder
• MathAudio Room EQ
• MusicBrainz Tagger
• m-TAGS
• BPM Analyser
• Waveform Seekbar
• WASAPI output support
• On-Screen Display
• Classic User Interface
• AC3 decoder
• ASIO support
• SQL Tree
• Logitech LCD Display & Visualization
• Audioscrobbler
• foo_twitter_post