the guitar introduces the evocative mood of the work, followed four measures later by the oboe, which with its characteristic sound, embraces the guitar into a conversation and at the same time into an invocation. the second theme, atmospheric, like an echo, reveals a waiting status. the work, full of fast arpeggios and technical difficulties for both instruments. gradually increases in dramatic tension and complexity, and concludes with the initial idea. the finale, simple, subtractive, allows a feeling of an unfulfilled expectation.