Possible Clues:

• To be played with sudden emphasis (music)
• Exchanging this, some spell 'emphasize', stopping at nothing with 'emphasise'!
• With sudden emphasis in music
• Bizarre of tzar to enter so markedly stressed
• Stressed command of tzar so muddled
• A directive to play a specific note with particular emphasis
• Order of tzar so emphatic, all of a sudden
• Soft razor shaved roughly and emphatically