PRD:Tik Tok App adds the requirement document for listening to music.

This is an imaginary project to add music listening function to Tik Tok. Simulate the product development process, from discovering requirements to finally outputting PRD documents.

A music listening App that combines the characteristics and advantages of Tik Tok was born for the digital music listening era. (Note: The App here is actually a main page in Tik Tok App)

The main feature is that the song stream is the core, similar to the information flow of today's headlines, and the songs and song lists recommended by the algorithm are displayed in the form of a list.

Tik Tok App is not a music listening module to compete with the head music app, or even fall into the quagmire of copyright war, but to enhance the user experience and stickiness of Tik Tok App itself and extend its own advantages.

1. Recommended algorithm driver: The algorithm has high accuracy and avoids complicated homepage layout.

2. The interaction is simple and clear: the homepage layout is simple and the navigation is clear and clear.

What is the era of digital listening to music?

The era of digital music listening is the era after the era of physical media listening. In the era of listening to songs through physical media, we accept songs through physical media, such as tapes, records and other physical media with information storage functions.

What is the difference in the era of digital music listening?

Some concepts that should be taken for granted in the era of listening to music in physical media will no longer exist. In the era of listening to songs in physical media, the concept of album was born naturally. Because a physical medium can store several songs, they become an album. However, this is not a concept that should exist in the era of digital music listening, because there is no limit on the capacity of storage media in the era of digital music listening.

In addition, the way of song distribution and users' habit of listening to songs have also changed fundamentally. Musicians' new songs can instantly welcome the first audience with the help of recommendation algorithms, without the long offline music distribution channels as before. People's loyalty to musicians will decline and they will pay more attention to the songs themselves.

conclusion

1. Abandon the concept of album and take songs and song lists as listening units.

2. The distribution of songs should be based on the recommendation of song streaming algorithm.

The coherence of listening to songs means that the user's auditory system has been enjoying music since the beginning of listening to songs, and suddenly stopping this enjoyment will make users feel negative. For example, the voice advertisement of qq music test, the sudden voice advertisement is not music, which interrupts the user's hearing enjoyment, so this test function has aroused strong resistance from people.

What is availability?

Usability is an attribute or characteristic of an object, which indicates what the object can be used for. In short, functional usability provides clues to how users interact with something, whether it is physical or digital. For example, the text or icon on the button can let the user understand the function of the button.

Usability mainly includes explicit usability, implicit usability, mode usability and negative usability.

Explicit availability (explicit availability)

The clues provided by explicit usability are very obvious and direct, usually words or typical icons widely recognized by users. At the first sight of the button, the user knows which operation will be performed after clicking it.

Since entering the era of digital music listening, great changes have taken place in all aspects of the music industry, such as the process of music creation, the distribution method of works, and the profit model of the industry, which are very different from those in the era of physical media listening to songs.

From the international media reports on TikTok, we can easily see that Tiktok is profoundly changing the music industry. Tik Tok has become an important platform for music promotion. The Road to the Ancient Town, written by an unknown singer, became popular in Tik Tok, winning the first place in the traditional music list BillBoard, and some old songs were re-popularized by Tik Tok.

At the same time, Tik Tok is also changing music creation and cultivating more independent musicians. Musicians add more repetitive beats to their works, which shortens the duration of songs and makes songs more popular in Tik Tok. The musician's broker system and record company system have been broken, and independent musicians can complete the whole industrial chain from song creation to distribution to promotion.

Tik Tok is becoming an important platform for people to discover new songs. People often find good songs on Tik Tok and then go to the music application to listen to the complete songs.

In the head music at home and abroad (such as Netease Cloud Music, QQ Music, Spotify, Apple Music), Tik Tok Divine Comedy song list is usually very high in the song list ranking, and even recommended by the home page. On YouTube and other long video platforms, there are also many videos of Tik Tok's song list, with considerable amount of play and comments. These videos are distributed in different countries, such as Vietnam, Japan, Thailand, the United States, India and so on.

Fast entrance area

The home page of listening to songs is divided into two parts. The upper part is buttons with icons arranged horizontally, which are the entrances of five pages respectively.

Table area

The lower part of the home page of listening to songs is a typical vertical list, which can be refreshed by pulling down and scrolled down indefinitely. It is mainly used to present singles and song lists recommended by personalized recommendation algorithm, but it may be interspersed with advertisements or activities.

Song card

Control to present the recommended single.

Song list card

Controls in the list area for displaying a list of recommended songs.

Advertising card

A control in the list area that is used to display advertisements or promote your own activities.

Mini player

When the song is played, it will appear in the music controller at the bottom of the list area of the home page.

Users can choose a single or a song list from the list area to listen to songs, or choose a shortcut to enter the corresponding page.

All the songs you have heard will be added to the playback history.

Song card

Information displayed: song cover, song name, song introduction and song label (generated by algorithm).

Interactive description:

Song list card

Information displayed: song list cover (with song list label), song list name, song list introduction and song list label (generated by algorithm).

Interactive description:

Mini player

Information displayed: song cover, song name, current lyrics, playing progress, and song playing status (play or pause symbol on the cover).

Interactive description:

Audition function

Click the audition button with the lightning icon on the far right of the song card, and the climax of this song will be played for 10 seconds. At this point, the lightning icon changes from the number 10 to the countdown, and changes from the number to the lightning icon after the countdown is completed.

Negative feedback of recommendation algorithm

Because the main part of the listening module is the song stream, which is completely driven by the recommendation algorithm, it is very important to improve the accuracy of the recommendation algorithm as much as possible. Negative feedback is a very important part, and users can give direct feedback on the recommended content.

After the user clicks the uninterested button in the lower right corner of the song card or song list card, some labels will be automatically generated in the background as possible reasons for the user to choose, and the user can also choose to enter the reasons manually.

Listen to the full short video BGM

When watching a short video, if the user is interested in the background music of the video, he can click the rotating record in the lower right corner, and the next page will have a "Song in Video" card. Buttons in the card allow users to enter the home page to play songs, or directly collect them as favorite songs.

Tabs and subpages

The song playing page contains two or three sub-pages (song list, song and lyrics sub-pages), and the tab is the control responsible for switching these three sub-pages.

Label container area

The display area of subpages can only display one subpage at a time.

Hi-song mode

Play songs in a loop, but only the climax of each song.

Only when the songs in the song list are played, there are three sub-pages, otherwise there are only two sub-pages of songs and lyrics.

Song subpage

Song list page

Lyrics subpage

Hi-song mode

A playback mode in which all songs are played in a loop, but only the climax of each song is played.

Leaderboards and coins

Our ranking is absolutely fair, only related to the number of times each song is played and the completion rate. However, users can increase the exposure of songs by putting in coins and increase the chances of songs appearing in other users' recommendation lists. Moreover, the profits generated by coin-operated will be distributed to the singer himself in proportion.

Advertising revenue of song list playing page

The advertising revenue generated in the top display area of the song sub-page of the song list playing page will also be distributed with the singer in a certain proportion.

Intelligent song list generation algorithm

From users' favorite songs and songs in listening history, the algorithm intelligently selects songs, generates various song lists and does not recommend new songs. There are three ways to generate a song list.