Hi all, very psyched for finding out this API, but would like some explanations.

Can someone explain or point me to a link where the explanations for each feature is?

I'm interested in danceability, energy, loudness, speechiness, liveness, tempo, and time signature.

For these, could you give me an explanation as to what the min and max is? for instance, loudness of -4, is that louder than a -5?

Thanks!

Hi, my team has been having the same problem!

Please advise

Thanks

In case anyone is curious, I ended up just grabbing the analysis segments using the API in a Django Python server side script, which I deployed to Heroku. Given a track id "trid" and an echo nest key "ECHONESTKEY," the code to do this is as follows:

import json import requests

...

results = requests.get("http://developer.echonest.com/api/v4/track/profile?format=json&bucket=audio_summary&api_key=%s&id=%s"%(ECHONESTKEY, trid))
results = results.json()
track = results['response']['track']
analysis_url = track['audio_summary']['analysis_url']
print analysis_url
r = requests.get(analysis_url)
results = r.json()
print results['segments']

I see that you guys have 30+ million songs identified, but if i try to identify a new song, do you try to analyze the beats?

if so, where is the documentation for that? I only see the original call to analyze, but I don't see how to call back later to see if the new analysis has been completed

I'm having same / similar problem:

./codegen.Linux-x86_64 billie.wav

[ {"metadata":{"artist":"", "release":"", "title":"", "genre":"", "bitrate":0,"sample_rate":0, "duration":0, "filename":"billie.wav", "samples_decoded":661490, "given_duration":0, "start_offset":0, "version":3.16, "codegen_time":3.484228, "decode_time":0.538852}, "code_count":106, "code":"eJw1lItxBCEMQ1sCbH7lAIb-S8jT3iQ38YHwybLwbkq_v8V_LoQyCOYE17bqsB5CFzYUpg6W8ra2OkxHq1C4On2EnBREmssXSMxiznYJVaumg64g0rwUtsJREF--SMuPVRFfyVpJZBFVEVWpjdAUuoJElqmwtT1KFlV5ak2CTILMmjrVSlpMv7Wh7UCpSZCJwKTFQqurPPXmfJJLi4vKpcVdoWorr1wKfCmoI5dDLhl-v0ANV1tVbVVR1QxWTVtRVVFVUVVRVVFVOV5FVUOnImh8UssKRUFamixpcreJoI0v4FVTR00ymmS0x7bzWzy0pv5izzpiFC_Wbm18zzRim_tMi2a3RwbMPlYAWj1VYD4RHdBGdOv1lHkvZ1HqWX2PsJdnByylv9M4L33M9zLQAO35kbdKN1_9AeZpUeaTSQ2bFntmiZBe84P1jJfFNErrLp6tvAJQdUfbqL7UXbnYhJcK1LltXkuFPZc79knr07OYC4wKdIxt6yVrpdPiJSMoOdMGVN2LKXd-ddk_LuRlZsXenfTaBKIDH8ahzh34wPLw-wzeDBA9d1TOfY3bhb8o0qN66pMnQfW-vhp-e_n1NTb-c_sxVkFHehWZ6K0Y5TEsdmBUTb289urM6-WzYzOQbZ9eqJ9zXc9i3OFemZDXANHNxXDfL0UHBNoHkG98xAvlo_M_P8kS8mmFZ6fxeoiTRgreBTxBgE9PHEm27Ahs1e-Axz1P2EvmTHXqGTw1NNijA0LNPOhFQz38F79Ekyr-wXxQF_9e6u9fJ6B5fDqBwtBZNCrdgznkjr-8a80XN0Ufg5m6dvrX9-rjydfQXFKXOfj61utlw4NPaXBfs_zuj_nx9fPFdN-fL5wz8Cv_AZ_-RkY=", "tag":0} ]

curl "http://developer.echonest.com/api/v4/song/identify?api_key=W79ZOXAFBXQMOQSQH&code=eJw1lItxBCEMQ1sCbH7lAIb-S8jT3iQ38YHwybLwbkq_v8V_LoQyCOYE17bqsB5CFzYUpg6W8ra2OkxHq1C4On2EnBREmssXSMxiznYJVaumg64g0rwUtsJREF--SMuPVRFfyVpJZBFVEVWpjdAUuoJElqmwtT1KFlV5ak2CTILMmjrVSlpMv7Wh7UCpSZCJwKTFQqurPPXmfJJLi4vKpcVdoWorr1wKfCmoI5dDLhl-v0ANV1tVbVVR1QxWTVtRVVFVUVVRVVFVOV5FVUOnImh8UssKRUFamixpcreJoI0v4FVTR00ymmS0x7bzWzy0pv5izzpiFC_Wbm18zzRim_tMi2a3RwbMPlYAWj1VYD4RHdBGdOv1lHkvZ1HqWX2PsJdnByylv9M4L33M9zLQAO35kbdKN1_9AeZpUeaTSQ2bFntmiZBe84P1jJfFNErrLp6tvAJQdUfbqL7UXbnYhJcK1LltXkuFPZc79knr07OYC4wKdIxt6yVrpdPiJSMoOdMGVN2LKXd-ddk_LuRlZsXenfTaBKIDH8ahzh34wPLw-wzeDBA9d1TOfY3bhb8o0qN66pMnQfW-vhp-e_n1NTb-c_sxVkFHehWZ6K0Y5TEsdmBUTb289urM6-WzYzOQbZ9eqJ9zXc9i3OFemZDXANHNxXDfL0UHBNoHkG98xAvlo_M_P8kS8mmFZ6fxeoiTRgreBTxBgE9PHEm27Ahs1e-Axz1P2EvmTHXqGTw1NNijA0LNPOhFQz38F79Ekyr-wXxQF_9e6u9fJ6B5fDqBwtBZNCrdgznkjr-8a80XN0Ufg5m6dvrX9-rjydfQXFKXOfj61utlw4NPaXBfs_zuj_nx9fPFdN-fL5wz8Cv_AZ_-RkY="

{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "songs": []}}

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Hi TKB21,

We return all the artist images when they are requested. There is no support for querying for specific images to be returned beyond licenses.

You could take the response and filter based on hostname to avoid non-last.fm images.

Hey guys, we are running into the exact same issue now. Here are some example requests:

http://developer.echonest.com/api/v4/song/profile?api_key=APIKEY&bucket=audio_summary&bucket=id%3Aspotify&bucket=tracks&format=json&track_id=spotify%3Atrack%3A0e7MKWjKXnaXbBfZskfSG6&track_id=spotify%3Atrack%3A7wDTZRmHTSbAdk1VTHjC4t

This request contains two spotify URIs but only returns one song: Run to the Hills by Iron Maiden.

If we perform the same API request but with just one track ID: http://developer.echonest.com/api/v4/song/profile?api_key=APIKEY&bucket=audio_summary&bucket=id%3Aspotify&bucket=tracks&format=json&track_id=spotify%3Atrack%3A7wDTZRmHTSbAdk1VTHjC4t

the other song is returned: Run to the Hills by Erik Grönwall.

Any ideas?

Looks like that might be a bug. We'll take a look. As a work around, you can make individual calls.

Paul

yes, we've been fighting spam on this forum for years, but we need to take more steps to make sure that you don't get emailed on every spam. -- Paul

Great! Thanks.

The request is made with spotify URIs that we get from a spotify search to get the info that we need about each song such as the tempo. Right now we show 25 search results for each search query. Would it be OK to use 25 requests per search until you have looked at the bug? It would make the number of API calls that we make increase by a factor of 25 so it makes a pretty big difference, we would probably need to verify that we won't hit the rate limit somehow.

Regards, Daniel