Strings of Sleep: Gentle Guitar TonesGuitar Quartet of Coimbra, Sleep Music Companion, Sleep Music Dream
Guitar Calm: Dog Restful MusicGuitar Quartet of Coimbra, Dog Calming Music Seduction, Dog Calming Music Universe
Tranquil Guitar Music for Dogs��� RelaxationGuitardogs, The Guitar Brothers, Guitar Quartet of Coimbra
Serene Guitar Music for Mind MeditationGuitar Quartet of Coimbra, The Music Guitar / The Sound Makers, Guitarte Ensemble
