Let me share two instances where the special taste of Lord's flute is relished by Caitanya Mahāprabhu in Śrī Caitanya-caritāmṛta.
The first instance is from madhya Lila chapter 21 which is aptly titled `The Opulence and Sweetness of Lord Śrī Kṛṣṇa'. Mahaprabhu is explaining Sri Sanatana Goswami about the sweetness of Krishna's face, His smile and then His lips and finally describes ... His flute !
The sound of Kṛṣṇa’s flute spreads in the four directions. Even though Kṛṣṇa vibrates His flute within this universe, its sound pierces the universal covering and goes to the spiritual sky. Thus the vibration enters the ears of all inhabitants. It especially enters Goloka Vṛndāvana-dhāma and attracts the minds of the young damsels of Vrajabhūmi, bringing them forcibly to where Kṛṣṇa is present. (CC Madhya 21.141)
“The vibration of Kṛṣṇa’s flute is very aggressive, and it breaks the vows of all chaste women. Indeed, its vibration takes them forcibly from the laps of their husbands. The vibration of His flute attracts even the goddesses of fortune in the Vaikuṇṭha planets, to say nothing of the poor damsels of Vṛndāvana. (CC Madhya 21.142)
“The vibration of His flute is just like a bird that creates a nest within the ears of the gopīs and always remains prominent there, not allowing any other sound to enter their ears. Indeed, the gopīs cannot hear anything else, nor are they able to concentrate on anything else, not even to give a suitable reply. Such are the effects of the vibration of Lord Kṛṣṇa’s flute.” (CC Madhya 21.142)
The second instance one is in Antya lila chapter 16 titled `Lord Śrī Caitanya Mahāprabhu Tastes Nectar from the Lips of Lord Śrī Kṛṣṇa' ! One evening after honouring Jagannnath prasadam Mahaprabhu became ecstatic. In ecstatic love, Śrī Caitanya Mahāprabhu ordered Rāmānanda Rāya to recite some verses. Thus Rāmānanda Rāya spoke as follows.
‘O hero of charity, please deliver unto us the nectar of Your lips. That nectar increases lusty desires for enjoyment and diminishes lamentation in the material world. Kindly give us the nectar of Your lips, which are touched by Your transcendentally vibrating flute, for that nectar makes all human beings forget all other attachments.' Upon hearing Rāmānanda Rāya quote this verse, Śrī Caitanya Mahāprabhu was very satisfied. Then He recited the following verse, which had been spoken by Śrīmatī Rādhārāṇī in great anxiety. (CC Antya 16.117-118)
‘My dear friend, the all-surpassing nectar from the lips of the Supreme Personality of Godhead, Kṛṣṇa, can be obtained only after many, many pious activities. For the beautiful gopīs of Vṛndāvana, that nectar vanquishes the desire for all other tastes. Madana-mohana always chews pan that surpasses the nectar of heaven. He is certainly increasing the desires of My tongue.’ After saying this, Śrī Caitanya Mahāprabhu was overwhelmed by ecstatic loving emotions. Talking like a madman, He began to explain the meaning of the two verses. (CC Antya 16.119-120)
“My dear lover,” Lord Caitanya said in the mood of Śrīmatī Rādhārāṇī, “let Me describe some of the characteristics of Your transcendental lips. They agitate the mind and body of everyone, they increase lusty desires for enjoyment, they destroy the burden of material happiness and lamentation, and they make one forget all material tastes. The whole world falls under their control. They vanquish shame, religion and patience, especially in women. Indeed, they inspire madness in the minds of all women. Your lips increase the greed of the tongue and thus attract it. Considering all this, We see that the activities of Your transcendental lips are always paradoxical. (CC Antya 16.121-122)
“My dear Kṛṣṇa, since You are a male, it is not very extraordinary that the attraction of Your lips can disturb the minds of women. But I am ashamed to say that Your impudent lips sometimes attract even Your flute, which is also considered a male. It likes to drink the nectar of Your lips, and thus it also forgets all other tastes. “Aside from conscious living beings, even unconscious matter is sometimes made conscious by Your lips. Therefore, Your lips are great magicians. Paradoxically, although Your flute is nothing but dry wood, Your lips constantly make it drink their nectar. They create a mind and senses in the dry wooden flute and give it transcendental bliss. “That flute is a very cunning male who drinks again and again the taste of another male’s lips. It advertises its qualities and says to the gopīs, ‘O gopīs, if you are so proud of being women, come forward and enjoy your property — the nectar of the lips of the Supreme Personality of Godhead.’ (CC Antya 16.123-125)
“Thereupon, the flute said angrily to Me, ‘Give up Your shame, fear and religion and come drink the lips of Kṛṣṇa. On that condition, I shall give up my attachment for them. If You do not give up Your shame and fear, however, I shall continuously drink the nectar of Kṛṣṇa’s lips. I am slightly fearful because You also have the right to drink that nectar, but as for the others, I consider them like straw.’ “The nectar of Kṛṣṇa’s lips, combined with the vibration of His flute, attracts all the people of the three worlds. But if we gopīs remain patient out of respect for religious principles, the flute then criticizes us. (CC Antya 16.126-127)
“This flute is nothing but a dry stick of bamboo, but it becomes our master and insults us in so many ways that it forces us into a predicament. What can we do but tolerate it? The mother of a thief cannot cry loudly for justice when the thief is punished. Therefore we simply remain silent. (CC Antya 16.129)
Again Śrī Caitanya Mahāprabhu said to Rāmānanda Rāya, “Please say something. I want to hear.” Understanding the situation, Rāmānanda Rāya recited the following words of the gopīs.
‘My dear gopīs, what auspicious activities must the flute have performed to enjoy the nectar of Kṛṣṇa’s lips independently and leave only a taste for us gopīs, for whom that nectar is actually meant. The forefathers of the flute, the bamboo trees, shed tears of pleasure. His mother, the river on whose bank the bamboo was born, feels jubilation, and therefore her blooming lotus flowers are standing like hair on her body.’ (CC Antya 16.140)
Upon hearing the recitation of this verse, Śrī Caitanya Mahāprabhu became absorbed in ecstatic love, and with a greatly agitated mind He began to explain its meaning like a madman. (CC Antya 16.141)
“Some gopīs said to other gopīs, ‘Just see the astonishing pastimes of Kṛṣṇa, the son of Vrajendra! He will certainly marry all the gopīs of Vṛndāvana. Therefore, the gopīs know for certain that the nectar of Kṛṣṇa’s lips is their own property and cannot be enjoyed by anyone else.
‘My dear gopīs, fully consider how many pious activities this flute performed in his past life. We do not know what places of pilgrimage he visited, what austerities he performed, or what perfect mantra he chanted.
‘This flute is utterly unfit because it is merely a dead bamboo stick. Moreover, it belongs to the male sex. Yet this flute is always drinking the nectar of Kṛṣṇa’s lips, which surpasses nectarean sweetness of every description. Only by hoping for that nectar do the gopīs continue to live.
‘Although the nectar of Kṛṣṇa’s lips is the absolute property of the gopīs, the flute, which is just an insignificant stick, is forcibly drinking that nectar and loudly inviting the gopīs to come drink it also. Just imagine the strength of the flute’s austerities and good fortune! Even great devotees drink the nectar of Kṛṣṇa’s lips after the flute has done so.
‘When Kṛṣṇa takes His bath in universally purifying rivers like the Yamunā and the Ganges of the celestial world, the great personalities of those rivers greedily and jubilantly drink the remnants of the nectarean juice from His lips.
‘Aside from the rivers, the trees standing on the banks like great ascetics and engaging in welfare activities for all living entities drink the nectar of Kṛṣṇa’s lips by drawing water from the river with their roots. We cannot understand why they drink like that.
‘The trees on the bank of the Yamunā and Ganges are always jubilant. They appear to be smiling with their flowers and shedding tears in the form of flowing honey. Just as the forefathers of a Vaiṣṇava son or grandson feel transcendental bliss, the trees feel blissful because the flute is a member of their family.’
“The gopīs considered, ‘The flute is completely unfit for his position. We want to know what kind of austerities the flute executed, so that we may also perform the same austerities. Although the flute is unfit, he is drinking the nectar of Kṛṣṇa’s lips. Seeing this, we qualified gopīs are dying of unhappiness. Therefore, we must consider the austerities the flute underwent in his past life.’ (CC Antya 16. 141-149)