- The first release will prevail as the PRIMARY METADATA unless the arranger/composer decides to make some changes and it is considered authentic... right, Masayoshi Minoshima?)
Note: To know the context, look for the first release of Bad Apple (Lovelight album in 2007) and the current ones.

- The ARTIST will always be the name of the Musical Circle (Alstroemeria Records, EastNewSounds, Halozy, SYNC ART'S, C-CLAYS, IOSYS, etc...), never the arranger, the vocalist or another person involved in the production of a song or Album ... those names must be in Tags.
Note: This is specified exactly because sometimes arrangers/composers use songs that have already been released on compilation albums or something like "THE BEST" and by doing this people believe that the artist becomes the arranger/composer or the vocalist.
Note 2: Hanatan - Paranoia is totally incorrect.

- There are some Musical Circles that fall into the inactive category, but that doesn't mean they're irrelevant, as they were involved in some popular songs and many don't recognize them as the first Source.
Examples: ALADDIN, Mohican Sandbag, etc.

- ZUN is a sacred name, if it is not written in Tags you would be disrespecting the absolute creator.

- There are only two Direct tags (that could be considered official) for these songs... Game ver. and TV Size
1.1 - Game ver. tags will almost never have an official release in physical or digital formats since the vast majority come from the game itself (ripped directly from the game) and generally last between 1:40 and 2:00, more or less.
1.2 - TV Size tags are generally what artists and producers consider "Insert Songs," and the length and editing are different compared to the Game ver. or the full song.
1.3 - Other tags like Cut ver. or edit can be used unofficially as long as the editing doesn't match the points used in official versions.

- If the song is a Cover (looking at Bandori and D4DJ...) the original source prevails... in this case, the anime or show where it first appeared.

Parappa
Dance Dance Revolution (from PS One and current)
Pump it up (arcade from 2002 and current)
Para Para Paradise
pop'n music (emulator)
Technomotion (8 arrows from Andamiro/F2 System)
Dance Dance Revolution Solo
Stepmania
In The Groove
Jubeat (emulator)
Reflec Beat (emulator)
Deemo (Mobile)
Cytus (Mobile)
o2jam
JamLegend (like GH but direct as online webpage)
Taiko no Tatsujin
Guitar Hero
DJ Hero
Gitadora (emulator)
Drum Station
Geometry Dash
Piano Tiles
BMS
High5
AstroRanger (emulator)
EZ2DJ (emulator)
NeonFM (emulator)
DJMAX Respect (Console)
Beatmania IIDX (arcade/emulator)
Sound Voltex (emulator)
CHUNITHM (emulator)
WACCA (someday)
Lanota (someday)
Nostalgia
Dance Evolution (someday)
Dancerush Stardom (someday)
Beat Saber
maimai (emulator)
Trombone Champ
Love Live SIF / SIF 2 (mobile in JP servers)
Love Live AC (emulator)
Love Live SIFAS (mobile in JP servers)
Bang Dream (mobile in JP servers)
Link Like Love Live (mobile in JP servers)
D4DJ Groovy Mix (mobile in JP servers)
Project Diva
Project Sekai (mobile in JP servers)
Groove Coaster
Touhou Danmaku Kagura (1st version in mobile)
Rotaeno
Chrono Circle (someday)
Phigros