ð ãã¥ãŒãã³ã°åºæºé³åç
匊ã®ãã¿ã³ãæŒããšåºæºé³ãåçãããŸããããäžåºŠæŒããšåæ¢ããŸãã
ã®ã¿ãŒã»ããŒã¹ã»ãã€ãªãªã³ã»ãŠã¯ã¬ã¬ã»ãã§ããªã©ã楜åšããšã®æšæºçãªãã¥ãŒãã³ã°ã«ãããå匊ã®åºæºé³ãåçããããŒã«ã§ãããã¥ãŒããŒãæå ã«ãªããšãã®é³åããã®åèã«äœ¿ããŸãã
äœ¿ãæ¹
- ãã¥ãŒãã³ã°ãããæ¥œåšãéžã³ãŸãã
- 鳎ãããã匊ã®ãã¿ã³ãæŒããšããã®é³ã®åºæºåšæ³¢æ°ã®é³ãåçãããŸãã
- ããäžåºŠæŒããšé³ãæ¢ãŸããŸããå®éã®æ¥œåšã®é³ãšããããèãæ¯ã¹ãªãã調匊ããŠãã ããã
èšç®ã®ä»çµã¿
ã®ã¿ãŒã»ããŒã¹ã»ãã€ãªãªã³ã»ãŠã¯ã¬ã¬ã»ãã§ãã®ãæšæºãã¥ãŒãã³ã°ã®å匊ã®é³ã鳎ãããŸãã匊ã®ãã¿ã³ãæŒããšé³ã鳎ãç¶ããããäžåºŠæŒããšæ¢ãŸããŸããã»ãã®ããŒã«ã«ç§»åãããšé³ã¯æ¢ãŸããŸãã é³ã¯ A4 ïŒ 440Hz ãåºæºã«ãã12å¹³ååŸã®åšæ³¢æ°ã§ãçŽé³ïŒãµã€ã³æ³¢ïŒã§é³ŽãããŠããŸããè³ã§åããããšãã¯ã匊ã®é³ãšåºæºé³ãåæã«é³Žããã2ã€ã®é³ã®ãããªããïŒé³éãåšæçã«æºããæãïŒããã£ããã«ãªããæ¶ãããšãããŸã§åãããŸãã
èšç®äŸ
ã®ã¿ãŒïŒ6匊â1åŒŠïŒ E2 82.41HzãA2 110.00HzãD3 146.83HzãG3 196.00HzãB3 246.94HzãE4 329.63Hz ããŒã¹ïŒ4匊â1åŒŠïŒ E1 41.20HzãA1 55.00HzãD2 73.42HzãG2 98.00Hz ãã€ãªãªã³: G3 196.00HzãD4 293.66HzãA4 440.00HzãE5 659.26Hz ãŠã¯ã¬ã¬: G4 392.00HzãC4 261.63HzãE4 329.63HzãA4 440.00Hz
䜿çšäžã®æ³šæ
- ãŠã¯ã¬ã¬ã®4匊ïŒGïŒã¯ã3匊ïŒCïŒããé«ãé³ã«åãããããã€Gããäžè¬çã§ãã
- ããŒã¹ã®äœãé³ã¯ãã¹ããŒããã©ã³ãããŒãããœã³ã³ã®å°ããªã¹ããŒã«ãŒã§ã¯ã»ãšãã©èãããªãããšããããŸããã€ã€ãã³ãããããã³ã䜿ã£ãŠãã ããã
- ãªãŒã±ã¹ãã©ã§ A ã 442Hz ã«åãããå Žåãªã©ãåºæºãéããšãã¯ãã®åºæºã«åãããŠãã ããã
ãããã質å
åšæ³¢æ°ã¯ã©ã®ããã«èšç®ãããŠããŸãã?
åœéçã«æšæºãšããããA4 = 440Hzããåºæºãšããåäºå¹³ååŸã®èšç®åŒ(åé³ããšã«2ã®12乿 ¹å)ãçšããŠãåé³ã®æ£ç¢ºãªåšæ³¢æ°ãç®åºããŠããŸãã
ã¹ããŒããã©ã³ã®ã¹ããŒã«ãŒã§ãæ£ç¢ºã«äœ¿ããŸãã?
å€ãã®å Žååé¡ãªã䜿ããŸãããå°åã¹ããŒã«ãŒã¯äœé³å(ç¹ã«ããŒã¹ã®äœã匊ãªã©)ã®åçŸæ§ãäœãããšããããŸããå¯èœã§ããã°ããããã³ãã¹ããŒã«ãŒã®äœ¿çšãããããããŸãã
å€åãã¥ãŒãã³ã°(ãªãŒãã³ãã¥ãŒãã³ã°ãªã©)ã«ã¯å¯Ÿå¿ããŠããŸãã?
ããããçŸåšã¯å楜åšã®æšæºçãªãã¥ãŒãã³ã°ã®ã¿ã«å¯Ÿå¿ããŠããŸããå€åãã¥ãŒãã³ã°ãè¡ãå Žåã¯ãç®çã®é³åã«å¯Ÿå¿ããåšæ³¢æ°ãä»ã®ããŒã«(é³ååšæ³¢æ°å¯Ÿå¿è¡šãªã©)ã§ã確èªãã ããã