ごはんができたよ · 2015-11-25 · SHM-CD · 14 positions on this issue.
“ひとつだけ” occupies position 1, sequence number 1 of 14, on the MDCL-5039 edition of ごはんができたよ. This issue was released 2015-11-25 on SHM-CD.
It opens the sequence of this specific issue. The next position is “ぼん ぼん ぼん”.
Title and placement follow the cited release evidence. The linked ごはんができたよ essay supplies musical context; this position does not independently infer writing credits, duration or a recording match with a streaming file.