1)   In-Tune Multi-Instrument Tuner 1.9
Tune your musical instrument quickly and accurately with this digital tuner. Uses microphone or direct electric guitar input for tuning. You can tune guitar, banjo, violin, and many other instruments. Has choice of gauge and pitch graph views.
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 2)   Guitar-Online Tuner 2.1.0.3
This guitar, mandolin, ukulele, fiddle, banjo, bass guitar tuner allows standard and open tunings.
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 3)   MusicGoals Demo 1.5
ear training, sight reading, and music theory applied to piano, guitar, violin, viola, cello, and bass - MusicGoals offers study, practice, and testing to improve skills, gain knowledge of instruments and music theory, and train the musical ear.
music theory software, ear training, sight reading, advanced placement, improve skills, chords, scales, intervals, piano, guitar,

 4)   Chord Alchemy 4.0
ChordAlchemy is the ultimate tool for chord lookups, reverse chord lookups and hearing how they sound. ChordAlchemy supports 100+ tunings, Added Bass, No Root, Scales, Chord Pages and Printing. Superb user interface for easy chord generation control!
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 5)   Guitar and Bass Ear Trainer 1.5
Play-along ear-training course for guitar, bass, and other fretboard instrument players. Learn to play effortlessly by ear. Develop the ability of playing whatever is in your mind without hesitation and without mistakes, improve your improvisation.
Guitar, Bass, Mandolin, Banjo, Ear Training, Improvisation, Scales, Chords, Guitar scales, Guitar chords,

 6)   Absolute Fretboard Trainer 3.x
If you want to master the fretboard of guitar, bass, banjo, mandolin, or other fretboard instruments, the Absolute Fretboard Trainer will take you there. Step-by-step exercises will help you develop instant knowledge of each and every note.
Guitar, Bass, Mandolin, Banjo, Fretboard, guitar scales, guitar chords,

 7)   MusicGoals by Eye and Ear 1.6
ear training, sight reading, and music theory applied to piano, guitar, violin, viola, cello, and bass - MusicGoals offers study, practice, and testing to improve skills, gain knowledge of instruments and music theory, and train the musical ear.
music theory software, ear training software, sight reading, advanced placement, improve skills, chords, scales, intervals, piano, guitar,