Product

Spotify – Core Music Experience

Feature

Song Addition Button Behavior Enhancement ( '+' Button for Adding to Playlists and Liked Songs)

Author

Ega Hemachandra – Aspiring Product Manager (CSE background)

Date

28/12/2025

  1. Executive Summary

    Spotify’s current “+” (Add) interaction prioritizes speed by instantly adding songs to liked songs, with playlist selection only appearing on a second click or tap.

    while this design optimizes for quick saving, user research indicates meaningful friction for users who likes to organize there playlist, who represent a majority segment of Spotify listeners.

    Based on:

    This PRD proposes low risk, backward compatible interaction improvement to better support both fast savers and playlist centric users - without disrupting existing habits.

  2. Problem Statement

    Users who actively organize playlists, face unnecessary friction when adding songs to specific playlist.

    Current Experience

    1. Users taps “+”
    2. Song is immediately added to liked songs playlist
    3. Users must tap “+” again
    4. Playlist picker appears
    5. Users select desired playlist

    Resulting Issues

  3. User Research & Evidence

    1. Primary Research Survey — 103 Responses

      Q1. Do you organize your playlist in Spotify?

      • 72.8% — Yes
      • 17.5% — No
      • 9.7% — Do not use Spotify

      Insight: A strong majority of Spotify users actively organize playlists, indicating that playlist intent is not a niche behavior.

      image.png

      Q2. Do you keep all songs in the default Liked songs playlist?

      • 54.4% — Yes
      • 35.9% — No
      • 9.7 — Do not use Spotify

      Insight: Users are split between:

      • Fast Savers (Liked songs first)
      • Intentional organizers (Playlist driven)

      Spotify currently optimizes primarily for the first group that is “Fast Savers”

      image.png

    2. Official Documentation

      Spotify's blog post (Feb 2023) states: "The heart and the “Add to playlist” icons [are consolidated] into a single plus button, allowing users to save all songs, albums, playlists, audiobooks, podcasts or episodes to Your Library with one tap."

      Insight: The behavior is working as designed to "streamline" saving, but it is poorly aligned with users who curate beyond "Liked Songs".

      Hypothesis: Spotify merged the two actions into the single + button to "streamline" things making it easier to do both adding song to liked songs playlist + add to multiple playlists in one flow. However, this design helps casual users but overlooks Users Who saves songs to playlists consistently and assumes "Liked Songs" is universal.

    3. Qualitative Responses (Open - ended)

      Common Themes:

      • “Easy’
      • “Convenient”
      • “Lazy”
      • “To many steps”
      • “Everything in one place”

      Interpretation: Users often default to liked songs playlist not because its ideal, but because playlist selection introduces cognitive and interaction cost.

  4. Root Cause Analysis

    1. Primary Root Cause

      The “+” button represents two distinct users intents with a single interaction:

      • Quick save users
      • Intentional playlist placement users

      The UI currently prioritizes only quick save users.

    2. Secondary causes

      • Playlist picker is hidden behind a second interaction
      • No clear affordance for choosing playlists immediately
      • Behavior is not explicitly communicated or discoverable
  5. User Personas Impacted

  6. Goals and Success Metrics

  7. Solution Options

  8. Risks & Mitigations

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  1. Conclusion