book's code and release it as a gem. Midilib - midilib is a pure Ruby MIDI library useful for reading and writing standard MIDI files and manipulating MIDI event data. micromidi - A Ruby

rates from European Central Bank. * [Monetize](https://github.com/RubyMoney/monetize) - A library for converting various objects into Money objects. * [Money](https://github.com/RubyMoney/money) - A Ruby Library for dealing with money and currency conversion. ## Natural Language Processing