Comparing the two fragrances…

Guerlain

Roads
Chant D'Arômes
Improved Silence
Only in Chant D'Arômes
Shared character
Both Chant D'Arômes and Improved Silence share a profile featuring bergamot, sandalwood, vanilla, citrus fruits, and various woods. They both also share floral and green accords.
How they differ
Chant D'Arômes is characterized by a chypre, spicy, and fresh structure, utilizing notes of jasmine, gardenia, ylang-ylang, oakmoss, mandarin, and honeysuckle. In contrast, Improved Silence features a woody, fruity, powdery, oriental, creamy, and nutty profile. Its composition includes rose, cedarwood, geranium, vetiver, amber, pink pepper, cardamom, tonka bean, lavender, everlasting flower, citruses, violet, ozonic notes, almond, and almond milk.
Who each suits
Chant D'Arômes suits those who prefer a spicy, fresh chypre with prominent white florals. Improved Silence suits those who prefer a complex, creamy, and powdery oriental scent with almond and lavender elements.
More Chant D'Arômes comparisons
More Improved Silence comparisons
Only in Improved Silence