So I choose Wild Mountain Thyme and Time Song by The Kinks.

	Time lives our lives with us
	
	Will you go lassie, go?
	Walk side by side with us
	And we'll all go together
	Time is so far from us
	To pull wild mountain thyme
	But time is among us
	All around the purple heather
	Time is ahead of us
	Will you go, lassie go?
	Above and below us
	For the summertime is coming
	Standing beside us
	And the leaves are sweetly blooming
	And looking down on us
	And the wild mountain thyme
	When we were young
	Blooms around the purple heather
	And our bodies were strong
	Will you go lassie, go?
	We thought we'd sail
	And we'll all go together
	Into the sunsets

Being lazy I asked https://chat.openai.com to give me a script to mix two text files.

#!/bin/bash

if [ $# -ne 3 ]; then
    echo "Usage: $0 input_file1 input_file2 output_file"
    exit 1
fi

input_file1="$1"
input_file2="$2"
output_file="$3"

paste -d '\n' <(paste -d '\n' "$input_file1" "$input_file2") | tr '\t' '\n' > "$output_file"

echo "Alternated lines from '$input_file1' and '$input_file2' into '$output_file'"