Hi, i was trying to lookup some songs and found i can buy it at
https://recochoku.jp and https://mora.jp/

Issue was that recochoku displayed false message:

お探しのページが見つかりません。

URLが間違っているか、ページが公開期間外の可能性があります。
URLを再度ご確認いただくか、サイト内の検索やページ内のリンクから目的のページをお探しください 。

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The page you are looking for cannot be found.

The URL may be wrong or the page may be out of date.
Please check the URL again, or use the search function on the site or the links on the page to find the page you are looking for.
and mora.jp was more straightforward:

システムエラーが発生しました

誠に恐れ入りますが本サービスは日本国内からのみご利用いただけるサービスです。

ご不便をおかけし、申し訳ございません。ご不明な点はヘルプをご確認ください。

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A system error has occurred.

This service is only available from within Japan.

We apologize for any inconvenience this may cause. If you have any questions, please check Help.
Both has common that i was accessing from computer/IP address not within Japan.

After using Tor browser set to use Japanese exit node (proxy), i was able to order at recochoku selecting credit card payment method (クレジットカード決済) and checkout.

I was translating texts using nice https://www.deepl.com/translator

Details on how to set Tor browser:

Linux: https://www.reddit.com/r/TOR/comments/s2x5b6/comment/hshre8s/ or https://tor.stackexchange.com/questions/733/can-i-exit-from-a-specific-country-or-node
commands: "locate torrc" or "find / -type f -name torrc" edit torrc in torbrowser dir. adding new line:
Code:
ExitNodes {jp} StrictNodes 1
Windows: https://www.wikihow.com/Set-a-Specific-Country-in-a-Tor-Browser