The Piano: Series 4

Season overview

Task: Write a JSON object for "The Piano" Season 4.
Constraints: Use ONLY provided synopsis and sources. No invented facts. No markdown. No asterisks. No headings. No bullet points (except in the array for the primer).
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Output: Valid JSON only.
TMDB Season Synopsis: Claudia Winkleman and Mika return. Search for UK's best amateur pianists. Guest mentors: Jools Holland, Hiromi, and Jamie Cullum.
Source [1]: New talent show profiling best amateur pianists in UK, performing at four stations.
Source [2]: British music competition on Channel 4 since 15 Feb 2023. Hosted by Claudia Winkleman. Lang Lang and Mika were judges in the first two series.
Source [3]: Created by Richard McKerrow. Cast: Claudia Winkleman, Mika, Lang Lang, Jon Batiste. Pianists play at four UK railway stations. Winner plays at Royal Festival Hall.
Source [4]: Talent show/competition. Contestants are secretly being judged. Four best (one from each station) move forward.
Overview:
Season 4 features the return of hosts Claudia Winkleman and Mika.
The show continues its search for the best amateur pianists in the United Kingdom.
This series introduces several guest mentors, including Jools Holland, Hiromi, and Jamie Cullum.
The competition format involves amateur performers playing on pianos located at four different railway stations across the country.
While the show profiles these musicians, the contestants are secretly being judged as part of a competition.
The ultimate goal for the participants is to be selected as one of the best performers to advance.
The winner of the competition will earn the opportunity to perform at the Royal Festival Hall.
(Need to check word count and ensure no outside info is used).
Drafting Overview (Target 160-220 words):
The Piano returns for its fourth season as Claudia Winkleman and Mika lead the search for the best amateur pianists in the United Kingdom. This talent competition features a variety of guest mentors, including Jools Holland, Hiromi, and Jamie Cullum, who join the production. The series follows amateur performers as they play on pianos situated at four different railway stations located throughout the country. Although the show profiles these musicians, the participants are actually involved in a competition where they are being secretly