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One of the song's most distinctive features is its unconventional structure, which frequently jumps between 100 BPM and 128 BPM . This "speed-up, slow-down" technique gives the track a dynamic, playful energy that keeps listeners engaged.

The track centers on a soulful sample from the 1979 song " I Can't Stop (Turning You On) " by the group Silk . The vocals, provided by Louise Clare Marshall , are manipulated throughout to match the shifting beats.

"" by the Scottish DJ duo LF SYSTEM is widely regarded as one of the standout dance anthems of recent years. Released in 2022, it became a massive commercial hit, topping the UK Singles Chart and solidifying the duo's place in the house music scene. Musical Highlights

Described as a " funky house " tune, it leans heavily into disco-inspired rhythms and uplifting energy. It has been praised by fans and critics alike as a "tune of the year" contender and a "brilliant" example of joyful dance music. Critical Reception

You can find the official lyric video and other versions on YouTube or stream the full track on Spotify .

Reviewers on platforms like Rate Your Music have called it a "pretty solid funky house song" while noting that its rapid pace changes make it feel "weird" in a way that stands out from standard club tracks. While some listeners feel it might fall short in certain production aspects, the general consensus is that it is a highly effective and catchy summer anthem.

Disclaimer: This tool is provided for educational and illustrative purposes only. No guarantee is made regarding accuracy, suitability, or performance. Use at your own risk. - Copyright: ufelectronics.eu / Andreas Dyhrberg

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Amplifier Schematic
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There are different ways to calculate an amplifier, depending on what you want to achieve.

Maybe you want to achieve a certain gain, as far as possible (classic mode). Or you have a low Vcc to respect (modern mode). Or you work with analog audio amps (symmetry mode).

Depending on what you want to achieve and the way of calculating it. Some fields might become dependent on others, or the other way around.

Your above choise makes some input fields available for manipulation, while hiding others.

🎯 1. Target Gain (Av) — "Classic mode" LF SYSTEM - Afraid To Feel (Official Lyric Video)

You care about how much your amplifier multiplies the input signal.

Set desired voltage gain and Rc voltage drop. Best for learning and simple amplifiers.

You say: “I want a gain of 10.”
The app adjusts resistors to try and match that.
You must give Av and Vrc (the voltage dropped across Rc).

Best for common emitter amplifiers.

✅ Default choice for most beginners and educational use. One of the song's most distinctive features is

⚡ 2. Target Emitter Voltage (Ve) — "Modern mode"

You care about setting a healthy DC bias point.

Prioritize stable biasing via Ve. Useful for low-voltage circuits or precision designs.

You say: “I want Ve = 0.5 V, to keep the transistor out of trouble.”
This makes sure your transistor stays in active mode.
Gain becomes whatever it turns out to be.

Ideal for common emitter amplifiers when the goal is to ensure proper biasing for low-voltage or precision circuits, and it’s also used in class AB amplifiers to prevent distortion The vocals, provided by Louise Clare Marshall ,

✅ Useful in low-voltage designs (e.g., 3.3V systems).

🧭 3. Target Collector Voltage (Vc) — "Symmetry mode"

You want to place the collector in the middle of the power rail.

Target Vc = Vcc/2 for maximum signal swing. Great for audio and analog signals.

You say: “Make Vc = Vcc/2” for maximum swing.
Useful for analog audio amps or symmetrical headroom.
Gain and Ve are outcomes.

Best for common collector amplifiers and class AB amplifiers.

✅ Best for signal integrity.

System - Afraid To Feel (official Lyric Video) - Lf

One of the song's most distinctive features is its unconventional structure, which frequently jumps between 100 BPM and 128 BPM . This "speed-up, slow-down" technique gives the track a dynamic, playful energy that keeps listeners engaged.

The track centers on a soulful sample from the 1979 song " I Can't Stop (Turning You On) " by the group Silk . The vocals, provided by Louise Clare Marshall , are manipulated throughout to match the shifting beats.

"" by the Scottish DJ duo LF SYSTEM is widely regarded as one of the standout dance anthems of recent years. Released in 2022, it became a massive commercial hit, topping the UK Singles Chart and solidifying the duo's place in the house music scene. Musical Highlights

Described as a " funky house " tune, it leans heavily into disco-inspired rhythms and uplifting energy. It has been praised by fans and critics alike as a "tune of the year" contender and a "brilliant" example of joyful dance music. Critical Reception

You can find the official lyric video and other versions on YouTube or stream the full track on Spotify .

Reviewers on platforms like Rate Your Music have called it a "pretty solid funky house song" while noting that its rapid pace changes make it feel "weird" in a way that stands out from standard club tracks. While some listeners feel it might fall short in certain production aspects, the general consensus is that it is a highly effective and catchy summer anthem.