Song composed for the celebration of the birth of the Bab and the birth of Baha'u'llah, which occurred within one day of each other (two years apart) in the lunar calendar.  The lyrics were composed by Duane Varan while the vocals, instruments and musical composition were facilitated using AI.  Lyrics as follows:

[verse]

On the first and the second day,
 Following the moon’s eighth ray,

Baháʼís the world over, 

celebrate the Twin Festivals

We celebrate the birth 

of Baha’u’llah and the Bab

As communities across the world rejoice.

[Chorus]

Rejoice!  Rejoice! – As Two Luminaries rose

Above the horizon of the world, their light forever glows

Rejoice! Rejoice! Celebrate two births divine.

Recreating the world anew - under God’s great design

Rejoice! Rejoice! God’s new day is here.

It’s a time to celebrate with great glee and cheer.

Rejoice! Rejoice! As we’re amazed and awed

“These two days are counted as one in the sight of God.”

[verse]

We celebrate the births divine,
 Twin Festivals through time entwined,

Two stars from one horizon glow

Releasing forces that gather and flow

Now everywhere the hearts take wing,
 In every soul, their praises sing.

Hearts awaken, spirits take flight,
 In worship and in service they shine so bright.

[Chorus]

Rejoice!  Rejoice! – As Two Luminaries rose

Above the horizon of the world, their light forever glows

Rejoice! Rejoice! Celebrate two births divine.

Recreating the world anew - under God’s great design

Rejoice! Rejoice! God’s new day is here.

It’s a time to celebrate with great glee and cheer.

Rejoice! Rejoice! As we’re amazed and awed

“These two days are counted as one in the sight of God.”

Rejoice! Rejoice! As we’re amazed and awed

“These two days are counted as one in the sight of God.”

Note: the first two lines refer to the method used for calculating the specific date for the Twin Festivals each year.  Although the Bahá’í calendar is solar, the dates for the births of these divine Manifestations and the one day separating them is based on the Islamic calendar.  So to adjust the date in the Bahá’í calendar, it is calculated as the first and the second day following the 8th full moon from Naw Ruz (hence the lyrics: 'on the first and second day, following the moon's eighth ray'.