# Wenzellabs — NSA Selector - [Manual PDF](../../manuals/wenzellabs_the_NSA_selector_ the NSA selector eurorack module.pdf) --- [NSA Selector Eurorack Module Manual (PDF)](https://github.com/wenzellabs/the_NSA_selector/blob/main/README.md) --- # Using the NSA Selector to Structure Full-Length Eurorack Songs As a eurorack modular musician, it’s easy to get stuck in the loop zone—great beats or textures, but no real movement or "song" development. The [NSA Selector module](https://github.com/wenzellabs/the_NSA_selector) is different: it’s a network-to-audio module that converts raw Ethernet traffic ("any bit on the network will be sent to the audio output") into audio signals, introducing a whole new way to bring variety, structure, and unpredictability to your music. Below, I'll break down creative strategies for using the NSA Selector as a core "arrangement instrument" in a modular setup, helping you move beyond loops and into full-length song territory. --- ## How the NSA Selector Works (Recap) - **Two Ethernet jacks, one audio output** - Network packet bits are literally "audified" to the output - Not a standard audio interface or network protocol player—just raw bit-to-audio tapping - 4 bit, 25MS/s native format from the PHY MAC MII interface; "network noise" becomes audio - Add computer-generated or real network traffic to shape the sounds --- ## Strategies for Full-Length Song Creation ### 1. **Section Changes via Network Traffic Modulation** **How:** - Use your computer, Raspberry Pi, or another network-capable device to send different types of traffic patterns at different times—like bursts, lulls, pings, file transfers, image transfers, or deliberate "quiet" periods. - Automate these traffic types using scripts, or MIDI-controllable software (integrate with ping scripts, netcat, socat, etc). - Use the NSA Selector's audio output as a key source for percussion, noise beds, or glitchy leads that change character over time based on the incoming network patterns. **Song Structure Use:** - Verses: Lightweight ping traffic for sparse noise, low rhythm - Chorus: Dump a bitmap image for intense, noisy bursts - Bridge: Network quiet or only small packets for minimal sections - Drop: Flood with HTTP or FTP or gaming traffic for maximum chaos --- ### 2. **Automated Evolutions With Scripts** **How:** - The included **sequencer/** shell scripts can "play" sequenced network patterns, e.g., network ping bursts of various sizes. - Combine with external sequencers that trigger scripts via MIDI-over-USB or network. - Build up sections that increase or decrease in complexity by controlling the density, duration, and periodicity of network traffic. **Song Structure Use:** - Intro: Low-density, simple traffic evolving into more complex patterns - Buildup: Gradually automate scripts to ramp up the network "sequencer" - Drop: All scripts firing, high-traffic bursts - Breakdowns: Back down to minimal scripts, single bursts --- ### 3. **Layered Sampling and Resampling** **How:** - Record the NSA Selector’s output during various network traffic states. - Resample or layer these as loops in a sampler module (e.g., Morphagene, Bitbox, Nebulae). - Use previously recorded "network jams" as evolving backgrounds, contrasts, or transitions throughout your structure. **Song Structure Use:** - Use sampled network audio for intro/outro beds, transitions between song sections, or to create evolving motif elements that reappear across the song ("theme and variation"). --- ### 4. **Glitchy Breaks, Fills, and FX** **How:** - Use external manipulation (like running tcpdump, flooding traffic, or dropping network interfaces) as a live performance technique to introduce breakdowns, rhythm changes, or sudden noise cuts. - Automate this with CV-controlled network switches or relays for precise song timing. **Song Structure Use:** - Dramatic drops or fills - Glitch transitions (sudden silence or cacophony, steering the energy flow) - FX overdubs or one-off noises that mark section changes (like new verse/chorus/break) --- ### 5. **Interactive or Generative Song Structures** **How:** - Set up automated or interactive network processes: e.g., control network devices via MIDI, touch interface, or generative code (Max/MSP, Pure Data, Tidalcycles, Supercollider, etc). - Song evolves based on real-time or "randomized" network interactions. **Song Structure Use:** - Self-generating textures that evolve across a full piece - Use physical network device actions (plug/unplug, Wi-Fi device activity) mapped to key structural moments --- ### 6. **Sync and Layer With Traditional Eurorack Modules** **How:** - Layer the NSA Selector output with analog drums, bass, and synths: route its audio through VCAs, filters, effects, and envelopes to keep it musical and dynamic. - Use envelope followers or comparators to extract triggers or gates from its noisy output, clocking sequencers or modulating other voices for cross-networked modulation over your groove. - Gate effects, VCAs, or sample switches ("song parts") by voltage derived from the Selector’s output—using the noise bursts to flip sections, mutes, or effects. --- ## Example Patch for Full Song Structure ``` [Network Source(s)] | v [NST Selector Module] --[VCA]--> [Filter/FX] --> [Mixer/Output] | ^ | | [Envelope Follower/Comparator] -------| | [Clock/Gate Out] --------> [Sequencer/Drum Machine/FX Trigger] ``` - Pre-program or improvise network scripts for evolving layers over song sections - Use envelope follower to trigger new drum/bass synth patterns or effects - Change network traffic types for unique "chorus," "verse," or "bridge" textures --- ## Tips for Creating Complete Songs - **Plan your network arrangements** like any musical score—time your traffic patterns for distinct sections. - **Blend with traditional voices:** NSA Selector shines as a textural/arrangement layer; use it to break loops and introduce surprise and movement. - **Automate, sample, and resample** for further flexibility—network sounds can become motifs! - **Use live performance of network changes** (muting ports, traffic bursts) for expressive control over your song’s structure. --- [Generated With Eurorack Processor](https://github.com/nstarke/eurorack-processor)