Piano Companion is a music theory reference app for songwriters, producers, teachers, and students. Look up any of 1,500+ chords or 10,000+ scales instantly, build progressions, and explore harmony on iOS, Android, and Mac.
Whether you're stuck on a progression, blanking on a scale name, or just exploring — Piano Companion gives you the answer in seconds. Press the keys you know, and it tells you what you're playing.
Search by name or tap the keys you know. Piano Companion identifies what you're playing — even from a MIDI keyboard.
The Chord Progression Builder suggests chords that fit your key. Experiment with patterns, listen back, and find what sounds right.
See notes on the grand staff, fingering for both hands, intervals, degrees, and compatible scales — all in context, not abstract textbook diagrams.
So, why should you choose Sound Normalizer 87 over other audio normalization tools on the market? Here are just a few benefits:
However, the "free" nature of such tools comes with a necessary caution. While legitimate free software like Audacity (which includes powerful normalization), MP3Gain, or dBpoweramp’s normalizer are safe, the search for "Sound Normalizer 87 Full Free" could lead users to dubious download sites. Risks include bundled adware, malware disguised as codecs, or outdated software that mishandles modern 24-bit or 32-bit float audio. The ideal free normalizer is open-source or from a reputable developer, transparent about its algorithms, and does not require disabling security software. A wise user will verify checksums, read community reviews, and prefer portable versions that require no installation. sound normalizer 87 full free
At its core, a sound normalizer is an algorithm that adjusts the amplitude (volume) of an audio file to a target level. It is crucial to distinguish normalization from compression or limiting. A pure normalizer does not squash the dynamic range (the difference between the quietest and loudest parts); instead, it performs a linear, uniform gain increase or decrease across the entire track. The most common form is , which scans a file, finds the highest sample (peak), and then raises the entire track so that this peak reaches a specified level, typically just below 0 dBFS (decibels relative to full scale) to avoid clipping. A more advanced form, loudness normalization (based on standards like EBU R128 or ITU-R BS.1770), mimics human hearing by measuring perceived loudness (LUFS - Loudness Units relative to Full Scale), creating a far more consistent listening experience across different songs or episodes. So, why should you choose Sound Normalizer 87
If you just want to hear your music at a consistent volume without editing files: Risks include bundled adware, malware disguised as codecs,
: If you need a 100% free (Open Source) tool for volume normalization, consider Audacity or MP3Gain . If you'd like, I can help you with:
While Sound Normalizer 87 is an excellent tool, there are other audio normalization software options available. Some popular alternatives include:
However, one German review site gave an older version a disappointing rating of 5.0 (out of a possible 10), noting a “kaum messbarer Effekt bei den Teststücken” (barely measurable effect on the test pieces). This suggests that while the software works well for many users, its effectiveness can vary depending on the source material.
Piano Companion is a music theory reference app that gives musicians instant access to 1,500+ chords with inversions, 10,000+ scales, a chord progression builder, reverse chord lookup, and an interactive circle of fifths. It is available on iOS, Android, and macOS, and supports 40+ languages. Whether you are a beginner learning your first chords or a professional songwriter sketching ideas, Piano Companion provides the answers you need in seconds.
Tap the piano keys you know on screen or connect a MIDI keyboard, and Piano Companion identifies every matching chord and scale in real time. This is especially useful when you hear a chord in a song but don't know its name — just play the notes and the app tells you what they form.
Piano Companion is free to download on iOS, Android, and macOS. The free version includes core chord and scale lookups. A Pro upgrade unlocks additional features including all chord inversions, the full scale library, the chord progression builder, and the circle of fifths tool.
Yes. Connect any MIDI keyboard to your device and Piano Companion will detect the notes you play, identifying chords and scales in real time. This works on iOS (via Camera Connection Kit or Bluetooth MIDI), Android (via USB OTG), and macOS (via USB or Bluetooth).
Piano Companion is available on iPhone, iPad, Android phones and tablets, and macOS. Your chord libraries sync across devices, so you can start on your phone and continue on your Mac.
Available on every major platform. Start exploring chords and scales today.
