GNU Solfege

Solfege is a musical program to educate and prepare ear for music appreciation.
This ear training program prepares and educates the ear with hearing and theory lessons like chords, intervals, rhythm, scales, and others.

It includes many exercises easy to follow and perform by users. Its GUI is user-friendly; it is divided into six main categories, each category contains sub categories that are exercises. Some of those are able to configure the instrument to show and play, or simply the configuration buttons. It offers a great number of instruments to choose from.

Unfortunately, it’s not a Multilanguage program. It requires a sound card, or even can be configured on some computers with the MIDI without the need of a sound card.

On the preferences window users are allowed to choose the preferred instrument, the chord instruments and the percussion instrument, as well select the male or female voice.

The program includes a manual and theory files. Besides, on its website there is additional information to consult if you have any difficulties.