"Development of 20th & 21st Century Technologies": HTML5 Crossword

Across

6. mechanical device which read a roll of perforated paper (6,5)
8. Musical Instrument Digital Interface (4)
10. analogue format - polyvinyl chloride plastic (5)
12. software developed for performing which lets users record and edit without stopping playback (11,8)
15. the first device to communicate to mass audiences (5)
16. low pitched four string instrument (4,6)
18. tape was held on a reel which passed through the recording/playback head and wound onto a second reel (4,2,4)
20. digitally recordable, highly portable, audio format (8)

Down

1. coin-operated public audio device, most popular between the 1940s and the 1960s (7)
2. a virtual version of a real instrument (7,10)
3. often used with distortion in Rock & Punk music (8,6)
4. playback device with limited frequency range (10)
5. early format for storing recorded information (3,8)
7. LP on a record stands for (4,6)
9. a device which allows audio capture / playback with a computer (5,9)
11. similar to the reel-to-reel tape recorder but more compact (8)
13. original process for capturing recorded sound (8,4)
14. electronic version of a well-known keyboard instrument (8,5)
17. a transducer used on electric guitars (6)
19. early flat disc format (6)