2.2.1 Safe to install
Unlock Your Musical Potential with Solo's Fretboard Visualization

Solo by Trio Software Ltd offers an intuitive and engaging way to visualize and understand the fretboard, perfect for musicians looking to enhance their guitar skills.
Visualize the fretboard, master scales, and play through changes like a professional with Intervallic Functions!
- Solo is a groundbreaking practice tool created by renowned fusion guitarists Tom Quayle and David Beebee.
- One of the biggest challenges in guitar improvisation is locating and mapping out the relevant chord tones and scales all over the fretboard in real time.
Solo is a highly focused app designed to enhance your note finding and visualization skills on the guitar. It eliminates time-based pressure and reduces the cognitive load of choosing which notes/intervals to play. As you become faster at identifying these notes, your ability to select them during improvisation will also improve. Solo offers significant benefits for players of all skill levels.
- Utilizing common progressions, Solo presents one chord symbol or scale at a time, prompting you to locate and play a series of notes based on their intervallic function.
- Solo analyzes the notes you play in real time, providing feedback and not progressing until you accurately identify each note by its intervallic function in the specified order.
This process cultivates strong fretboard visualization, allowing you to navigate the fretboard confidently regardless of the complexity of the chord changes.
In addition to being an exceptional ear training tool, Solo enhances your ability to both visualize and audibly recognize what you're playing in real time.
If you struggle with learning new scales, playing through chord changes, or find yourself confined to pattern-based playing despite knowing your note names, diligent practice with Solo will transform your knowledge of the fretboard and subsequently your ability to outline harmony during improvisation.
- Changes Playing Trainer: Practice finding intervallic functions over a series of chord changes based on common and popular progressions. Solo is programmed with a deep understanding of jazz and popular music harmony, ensuring it selects appropriate intervallic functions based on the progression's harmony.
- Scale Trainer: Practice finding intervallic functions within scales on the fretboard. Solo encompasses all modes of the Major, Melodic Minor, Harmonic Minor, and Harmonic Major scales, as well as pentatonic and symmetrical scales. Viewing and identifying scale tones as intervallic functions will significantly enhance your ability to manipulate and improvise with scales in real time.
- Tutorials: Solo features video tutorials to guide you through intervallic functions, finding them on the fretboard, using Solo for ear training, and maximizing your practice time with the app.
No registration or account is required to use Solo.
Overview
Solo - Fretboard Visualization is a Commercial software in the category Audio & Multimedia developed by Trio Software Ltd.
The latest version of Solo - Fretboard Visualization is 2.2.1, released on 04/05/2025. It was initially added to our database on 12/21/2023.
Solo - Fretboard Visualization runs on the following operating systems: iOS.
Users of Solo - Fretboard Visualization gave it a rating of 5 out of 5 stars.
Pros
- Solo offers interactive visualization of the guitar fretboard, making it easier for guitar players to understand and explore different chord positions and scales.
- It provides a user-friendly interface that allows users to easily switch between different keys, tunings, and scale types for a customizable learning experience.
- The app offers features like audio playback of chords and scales, helping users train their ears along with their visual understanding of the fretboard.
- Solo also includes practice exercises and quizzes to help users reinforce their learning and improve their skills in a structured manner.
- It offers both free and premium versions, allowing users to access basic features for free before deciding to upgrade for additional advanced functionalities.
Cons
- The free version of Solo may have limited access to certain features and content, prompting users to opt for the premium version for a comprehensive experience.
- Some users might find the interface slightly overwhelming at first due to the abundance of information and options available on the screen while navigating through different settings.

David Fischer
I am a technology writer for UpdateStar, covering software, security, and privacy as well as research and innovation in information security. I worked as an editor for German computer magazines for more than a decade before joining the UpdateStar team. With over a decade of editorial experience in the tech industry, I bring a wealth of knowledge and expertise to my current role at UpdateStar. At UpdateStar, I focus on the critical areas of software, security, and privacy, ensuring our readers stay informed about the latest developments and best practices.
Latest Reviews by David Fischer
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