eSPi stands out with its comprehensive set of features tailored for music creators who value authenticity in their sound design process. The app includes advanced audio manipulation tools such as sample chopping, pitch shifting, and sequencing capabilities.

One of the key highlights is its ability to emulate the gritty signature sound characteristic of the SP-1200 when pitching samples up & down. This feature ensures that users can achieve the same raw texture found in many iconic 90s tracks.

In addition to its core functionalities, eSPi offers various filters, effects, and a built-in compressor to refine your beats further. These tools provide flexibility and control over your sound, making it suitable for both beginners and seasoned producers looking to recreate vintage vibes digitally.

When it comes to music production applications like eSPi, the size and variety of the music library play a crucial role in providing users with ample resources for creativity. eSPi offers an extensive library that allows users to import samples or record them directly within the app.

The application ensures that all included samples are properly licensed, giving users peace of mind when creating beats. This commitment to copyright authenticity means producers can focus on their art without legal concerns.

Furthermore, eSPi's compatibility across multiple platforms including iPad, Mac, Linux, and PC ensures that musicians have consistent access to this rich library regardless of their preferred device.

Audio quality is paramount in music production, and eSPi excels in delivering high-grade audio processing capabilities. The app provides multiple filters, effects, and a compressor, which are essential for shaping and refining sound.

One standout feature is its emulation of the gritty signature sound associated with the legendary SP-1200. This capability allows users to pitch samples up and down while maintaining the characteristic texture that has defined hip-hop and house music for decades.

By offering these sophisticated audio quality options, eSPi empowers producers to craft professional-sounding tracks that stay true to the authentic sound of 90s beatmaking.