The document provides images of various musical instruments including clarinets, oboes, saxophones, cellos, drums, flutes, guitars, French horns, trumpets, trombones, maracas, triangles, and more. The images show the instruments from different angles and perspectives to illustrate their appearance and construction. In total, over a dozen different instruments are represented through stock photography images sourced from various websites.

1. Instruments

21. Imágenes obtenidas de:
• https://i.pinimg.com/564x/0e/28/5c/0e285c3be288afd763a234a21a1f59ac--clarinets.jpg
• https://res.cloudinary.com/dk-find-out/image/upload/q_80,w_960,f_auto/70000702_qj1rjg.png
• http://img.rtve.es/imagenes/clave-sinfonica-oboe-03-07-16/1467483041851.png
• https://www.lcsax.com/upload_files/alto/A-702-zoom.png
• https://i.pinimg.com/originals/b6/bf/c8/b6bfc8d82d6ba02779ac8eb86f8d26c5.jpg
• https://media.wwbw.com/is/image/MMGS7/J24002000002000_IMAGE_00?fmt=jpeg&qlt=100&wid=1000
• https://cdn.shopify.com/s/files/1/0580/3805/products/Cello_Pant_with_Cello_2000x.JPG?v=1456255323
• http://nebula.wsimg.com/dc07ca88add3f5bac116050e7bc17d1e?AccessKeyId=5D3B4FEB2E1C44FB0503&disposition=0&alloworigin=1
• http://pngimg.com/uploads/drum/drum_PNG14350.png
• https://fagot-los.nl/wp-content/uploads/2016/07/fagot-e1471537811569.png
• http://moziru.com/images/flute-clipart-transparent-9.png
• https://www.yamahamusiclondon.com/sites/ymlv5.19/productimages/assets/Gigmakersmall.png
• https://goo.gl/images/9o67xo
• http://www.kuehnl-hoyer.de/wp-content/uploads/2015/09/Nr.15129-NZ-B-F-Tenorposaune-Bolero-Thayer-Ventil.png
• http://www.joseffeco.com/wp-content/uploads/2017/11/pepakoncerty.png
• https://www.peripole.com/img/products/peripole_2039.gif
• https://vignette.wikia.nocookie.net/csydes-test/images/5/55/Maracas.PNG/revision/latest?cb=20170207032136
• https://upload.wikimedia.org/wikipedia/commons/5/5c/Triangle_instrument_and_stick.png
• https://www.paxman.org.uk/Files/102843/Img/17/Yamaha-YHR567-French-Horn.png