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Enter any two safe-for-work communities. We’ll place their public descriptions, members, growth, topics and collected rule titles side by side — instantly, from data we already have.

r/Guitar vs r/piano

Side-by-side using public descriptions, members, growth and rule titles from SubMouse. Missing fields show as n/a. Adult communities are excluded.

Swap sides New comparison Related to r/Guitar Related to r/piano

Guitar community vs piano community

r/Guitar’s public description is a forum for exchanging guitar-related information from novice to experienced players. r/piano’s directory text is simply all things piano related.

In our directory, Guitar is larger (about 3.5M, rank #298) than piano (about 1.3M, rank #823). Activity samples show Guitar posting more often (~145 posts/day vs ~59). Both samples mix text with video and images; Guitar also shows galleries. Guitar’s sample flairs include question, gear, play, discussion, newbie and purchase; piano’s sample uses performance-critique, beginner/intermediate help, discuss-this and digital-piano question flairs.

Rule titles: Guitar enforces positive-karma/no-new-accounts, bans spam and discourtesy and removes empty posts; piano steers common questions into a weekly thread and bans low-effort images, basic tutorials and generic playlist dumps.

  • Choose r/Guitar for gear, lessons and play discussion under its karma and anti-spam rules.
  • Choose r/piano for practice, digital-piano help and critique-friendly performances under its weekly-thread rules.
  • Both sit outside the current Top 100 cut.

Written comparison based on public descriptions and rule titles · updated 2026-11-07.

r/Guitar

Guitar - gear, reviews, lessons, and discussion for everyone!

Welcome to r/guitar, a community devoted to the exchange of guitar related information. This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discus…

Members
3.5M
7-day growth
+2.2K
Posts/day
144.6
Directory rank
#298
Created
May 28, 2008
Submissions
Text or links

Sample mix: text posts 46%, videos 23%, images 18%

Topics: Guitar

Rule titles (short names we collected)

  • HOW TO SUBMIT A POST IN R/GUITAR
  • POSITIVE KARMA ONLY - NO NEW ACCOUNTS
  • POSTS WITH NO TITLE OR CONTENT WILL BE REMOVED
  • SPAM, SELF-PROMOTION, ADVERTISING BY PROXY, SOLICITING SOCIAL MEDIA VIEWS, ETC. ARE NOT ALLOWED.
  • DISCOURTESY - ANY DISCOURTESY TOWARD OTHERS WILL RESULT WITH A PERMANENT BAN
  • MEMES/JOKE/TROLL POSTS, AND ANY OF THE FOLLOWING ARE NOT ALLOWED:
  • GEAR APPRAISALS, SELLING, OR DONATION SEEKING ARE NOT ALLOWED IN R/GUITAR
  • GCJ Related
  • JOIN OUR WHITELIST

Open r/Guitar on SubMouse

About this community: r/Guitar (#298, about 3.5 million) exchanges guitar information for novices through experienced players. Collected rules cover HOW TO SUBMIT A POST IN R/GUITAR; POSITIVE KARMA ONLY - NO NEW ACCOUNTS; POSTS WITH NO TITLE OR CONTENT WILL BE REMOVED; SPAM, SELF-PROMOTION, ADVERTISING BY PROXY, SOLICITING SOCIAL MEDIA VIEWS, ETC. ARE NOT ALLOWED. Sample ~144.6 ppd (700 posts). Sample mix: text:321, video:158, image:127,…

r/piano

Piano

All things piano related!

Members
1.3M
7-day growth
+767
Posts/day
59.4
Directory rank
#823
Created
Oct 28, 2008
Submissions
Text or links

Sample mix: text posts 49%, videos 38%, images 10%

Topics: Piano

Rule titles (short names we collected)

  • Common generic questions should be asked in the 'There Are No Stupid Questions' post
  • No low-effort images, memes, or contextless images
  • No basic tutorials
  • No generic piano music videos / playlists
  • No spam, advertising, low-content blog posts, etc.
  • Be nice to each other
  • No critique in "No Critique" posts

Open r/piano on SubMouse

Supported differences

Aspectr/Guitarr/piano
Public focus (from each community’s public description) Welcome to r/guitar, a community devoted to the exchange of guitar related information. This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discus… All things piano related!
Size
r/Guitar is larger in our directory (about 2.7×).
 3.5M members 1.3M members
Posting activity (our sample) 144.6/day 59.4/day
Common post types in our sample text posts 46%, videos 23%, images 18% text posts 49%, videos 38%, images 10%
Topic tags on SubMouse Guitar Piano
Selected rule titles (short names we collected) HOW TO SUBMIT A POST IN R/GUITAR; POSITIVE KARMA ONLY - NO NEW ACCOUNTS; POSTS WITH NO TITLE OR CONTENT WILL BE REMOVED; SPAM, SELF-PROMOTION, ADVERTISING BY PROXY, SOLICITING SOCIAL MEDIA VIEWS, ETC. ARE NOT ALLOWED.; DISCOURTESY - ANY DISCOURTESY TOWARD OTHERS WILL RESULT WITH A PERMANENT BAN Common generic questions should be asked in the 'There Are No Stupid Questions' post; No low-effort images, memes, or contextless images; No basic tutorials; No generic piano music videos / playlists; No spam, advertising, low-content blog posts, etc.

Rules and posting patterns we can verify

Guitar short titles include: how to submit a post; positive karma only — no new accounts; posts with no title or content removed; spam/self-promotion/advertising by proxy not allowed; discourtesy leads to permanent ban; memes/joke/troll limits. Our sample flairs include question, gear, play, discussion, newbie and purchase.

piano: common generic questions go in the ‘there are no stupid questions’ post; no low-effort images/memes/contextless images; no basic tutorials; no generic piano music videos/playlists; no spam/advertising; be nice; no critique in ‘no critique’ posts. Our sample flairs include performance critique, beginner/advanced help, discuss-this and digital-piano question.

Where this comparison comes from

Public descriptions and member counts from SubMouse’s safe-for-work directory. Short rule titles and activity samples SubMouse collected. Short titles only.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and post-type mixes appear when we have an activity sample. Rule lines are short titles, not the full sidebar. Directory rank is listing order — communities outside the current Top 100 open in the info tool instead of a full community page.

Comparisons we prepared

Hand-written explanations for pairs where the public descriptions and rules support a real distinction: