Create the complete finished 4:5 concert poster for the fictional contemporary piano series AFTERTONE. A black grand piano keyboard dominates the frame, entering from the lower-left foreground and receding diagonally toward the upper-right; its enlarged ivory and black keys form the poster’s main graphic grid. Behind the keys, set the word AFTERTONE in very large condensed charcoal lettering across a warm paper-white field. The nearest key edges visibly interrupt the lower part of the letters so instrument and type read as one composition. At the upper-left, include only the small exact line PIANO / LIVE SERIES 01 in electric chartreuse sans serif.One pianist’s hand, attached naturally to a partial forearm entering from the right edge, presses a single white key near the center. Keep the finger joints natural and show clear fingertip contact with the key. First read: the bold diagonal keyboard crossing the huge title. Second read: the hand-to-key contact and subtle wood grain along the piano body.Use sharp concert-hall side light to reveal key depth, black lacquer and warm ivory, without a visible spotlight beam. Keep the palette to charcoal black, warm ivory and one chartreuse type accent. No face, extra hands, audience, music notes, sound waves, collage, decorative icons, invented event details or additional text. Make the typography crisp and spell the specified copy exactly. The result should read as one coherent designed performance poster.