Explanation
The client has two objectives:
1. Move website users to the mobile app.
2. Create new mobile app downloads from new users.
For the first objective, you want to create a custom audience based on your client's customer base in order to move website users to install the mobile app.
For the second objective, you want to reach out to people who have interacted with the brand before and new potential users. In this case, your best option is to market to fans who have interacted in the past 90 days and also a new audience based on the current customer base.

Explanation
The four main factors that affect your ad in an auction are the following:
* Advertiser Bid: How much you value the results you are trying to obtain.
* Estimated Action Rates: How likely Facebook thinks a given person will take action on your ads.
Estimated action rates are based on the person you're reaching historical data and your ad's historical data performance.
* Ad quality: Basically this comes down to your images or creative. The better the ad image, video or design, the more appealing it will be to your target audience; thus, increasing the ad quality.
* Relevance: If ads are getting negative feedback or are not getting actions, your relevance will be much lower.
Ad relevance diagnostics aren't inputs into the ad auction:
* Quality Ranking: How your ad's perceived quality compared to ads competing for the same audience.
* Engagement Rate Ranking: How your ad's expected engagement rate compared to ads competing for the same audience.
* Conversion Rate Ranking: How your ad's expected conversion rate compared to ads with the same optimization goal competing for the same audience.
Facebook uses user value, not any of the ad relevance diagnostics in calculating Total Value. Just keep in mind that the Relevance Diagnostics is an output of all of the metrics above; NOT an input.
Frequency is only a metric as a result of your ads and relationship between reach and impressions.

Explanation
Generally, large brand advertisers are most successful when they focus on reaching more people. They can do that by choosing a lower frequency cap (like 1-2 ads per week).
However, newer brands with less brand recognition who are running shorter campaigns may create more memorable impressions by increasing their frequency cap to show more ads to a smaller group of people and maximize awareness.
In this case, since you have a "lesser known" rock band, you need to increase frequency up to 6 times per week. You also want to use "Reach and Frequency" since your objective is to maximize reach. Each time you see "maximize reach" in your campaigns, the answer will most likely be "reach and frequency".
You also want to build a core audience based on people interested in rock music in each city in order to run the advertising campaigns.

Explanation
About ad sequencing
Reach and frequency buying has a sequencing tool that allows you to arrange up to 50 ads in a certain order to be shown to an audience. People in your target audience will have the opportunity to see ads in the order you set. For example, ad #1 will be delivered to them before ad #2 is delivered. It doesn't allow you to control whether or not a person has to have engaged with the content you are showing in order to see the next ads in your sequence.
Sequence your ads when you want to tell a story or present information to people in a specific order. For example: If you want to build a narrative with your ads, you can show one ad that tells the beginning of the story first and then show additional ads afterward that continue to tell the story in a set order. Your audience will see ad #1 before they see ad #2, and so on.
Sequencing becomes available after you've uploaded your ad creative and reserved your reach and frequency campaign.
Use sequencing when:
* You want to reach a broader audience with several different ads that tell a story.
* You want to try different ways of engaging a broader audience.
* You want to tell a story about a brand.

Explanation
You should never optimize conversion campaigns unless you have at least 500 events. The number of events you are getting at each stage of your funnel are key here:
* 4,000 Lead Events => you can run conversion campaigns to new audiences.
* 300 Add To Cart Events => you need to run traffic campaigns to custom audiences (web visitors).
* 121 Initiate Checkout Events => you need to run traffic campaigns to custom audiences (web visitors).
* 48 Purchase Events => you need to run traffic campaigns to custom audiences (web visitors).
Therefore, the only two strategies that apply in this case is to run conversion ads to new audiences to the "Lead Event" and traffic ads to people who have stayed at one of the other events to move them ahead in your client's online sales funnel.