I also tried opening the app directly from inside the package and got some debugging messages.
/Applications/Spotify.app/Contents/MacOS » ./Spotify pedpal01@E107278-mac
16:45:01.587 I [breakpad.cpp:241 ] Uploading crash dump: /Users/pedpal01/Library/Caches/com.spotify.client/708778F2-EDB2-4712-AAC6-827BC5E9B0B2.dmp
com.spotify.webhelper: Already loaded
2015-03-19 16:45:01.772 Spotify Helper[4630:507] Cannot find executable for CFBundle 0x7874e3b0 </Applications/Spotify.app/Contents/Frameworks/Chromium Embedded Framework.framework/Libraries/PDF.plugin> (not loaded)
16:45:01.919 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:collectionrootlist] Creating context
16:45:01.919 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:publishedrootlist] Creating context
16:45:01.919 5 [playlist_be_toplist.cpp:268 ] Creating context for 'spotify:user:pedrospcampos:top:tracks'
16:45:01.919 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:rootlist] Creating context
16:45:01.919 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:inbox] Creating context
16:45:01.923 D [spirc_manager.cpp:229 ] GAIA: SpircManager::SpircManager, ident_=e41fd7194c518ba97c43fa818c1924915130ac79
16:45:01.925 5 [playlist_be_pl4.cpp:558 ] synchronizePlaylistContainer 'spotify:user:pedrospcampos:collectionrootlist'
16:45:01.925 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:pedrospcampos:collectionrootlist] Synchronization starting: DIFF (from revision 0,726f6f7400000000000000000000000000000000)
16:45:01.935 I [sliding_window_prefetch_strategy.cpp:184] Prefetch: looks like new context - resetting window size to 1
16:45:01.942 I [app_store_upgrader.cpp:101 ] Update app store in 0 s
16:45:01.943 I [offline_manager.cpp:2310 ] Storage has been cleaned
16:45:01.943 I [sliding_window_prefetch_strategy.cpp:184] Prefetch: looks like new context - resetting window size to 1
16:45:02.020 I [ap_connection_impl.cpp:898 ] Connecting to AP lon2-accesspoint-a28.ap.spotify.com:4070
16:45:02.129 5 [playlist_be_pl4.cpp:558 ] synchronizePlaylistContainer 'spotify:user:pedrospcampos:publishedrootlist'
16:45:02.129 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:pedrospcampos:publishedrootlist] Synchronization starting: GET (from revision 0,726f6f7400000000000000000000000000000000)
16:45:02.144 I [sliding_window_prefetch_strategy.cpp:107] Prefetch window maxed and full, waiting for 0 track changes
16:45:02.339 5 [playlist_be_toplist.cpp:299 ] synchronizePlaylist 'spotify:user:pedrospcampos:top:tracks'
16:45:02.339 3 [playlist_be_toplist.cpp:234 ] [spotify:user:pedrospcampos:top:tracks] Synchronization starting
2015-03-19 16:45:02.430 Spotify Helper[4632:507] Cannot find executable for CFBundle 0x7af3df70 </Applications/Spotify.app/Contents/Frameworks/Chromium Embedded Framework.framework/Libraries/PDF.plugin> (not loaded)
16:45:02.539 5 [playlist_be_pl4.cpp:558 ] synchronizePlaylistContainer 'spotify:user:pedrospcampos:rootlist'
16:45:02.539 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:erikbengtsson:playlist:7Lk7GdufnV2ETkKOeBLne1] Creating context
16:45:02.539 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:jakechudnow:playlist:2hpkPxi6bdA2XJBH4Tq7UB] Creating context
16:45:02.539 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:mejoresplaylistsspotify:playlist:05Hd48jdQIz3s8WRrvGnzf] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:6mNA9f80sh35ZzWzuKanLD] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:gkope:playlist:0tYx9AAv5duvwRLCcCJYzB] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:569HkwzVbO0qIKv1WCkGmt] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:0L0wp89eOE6v39prxyECqu] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:2xAd2CuLtaqR9muQMi2YES] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:6H3JeOef1qmPavezFaSJDE] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:5bX0ZaLlARpPkqEsnerxAc] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:52dPoLeec4OcqiIDX5a0mf] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:1250443344:playlist:3hFccNFarbKK9undOYmi0L] Creating context
16:45:02.540 5 [playlist_be_pl4_context.cpp:149 ] [spotify:user:pedrospcampos:playlist:1asPL4ZuKeBRY7MPrFvf1S] Creating context
16:45:02.540 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:pedrospcampos:rootlist] Synchronization starting: DIFF (from revision 65,526e4643331fe92416e73074221949206ad8148a)
16:45:02.550 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:pedrospcampos:inbox] Synchronization starting: DIFF (from revision 112,2038f439505c9bbe653b4fb64f6916b4b9978e32)
16:45:02.750 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:erikbengtsson:playlist:7Lk7GdufnV2ETkKOeBLne1] Synchronization starting: DIFF (from revision 32,d34cd71081c030a64b9a47dc54e3b867230eba34)
2015-03-19 16:45:02.926 Spotify Helper[4633:507] Cannot find executable for CFBundle 0x78749d20 </Applications/Spotify.app/Contents/Frameworks/Chromium Embedded Framework.framework/Libraries/PDF.plugin> (not loaded)
16:45:03.070 I [ap_connection_impl.cpp:527 ] Connected to AP: 78.31.8.112:4070
16:45:03.199 D [spirc_manager.cpp:470 ] GAIA: TIMING(21762342) SpircManager::start, _service_status=kServiceStatusStopped
16:45:03.200 D [spirc_manager.cpp:1258 ] GAIA: TIMING(21762342) SpircManager::sendSubscribe
16:45:03.200 D [spirc_manager.cpp:268 ] GAIA: SpircManager::stateTransition, kServiceStatusStopped->kServiceStatusInSubscribeTx
16:45:03.200 D [spirc_manager.cpp:470 ] GAIA: TIMING(21762343) SpircManager::start, _service_status=kServiceStatusInSubscribeTx
16:45:03.200 D [spirc_manager.cpp:470 ] GAIA: TIMING(21762343) SpircManager::start, _service_status=kServiceStatusInSubscribeTx
16:45:03.201 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:pedrospcampos:collectionrootlist] 'DIFF' request complete
16:45:03.201 3 [playlist_be_pl4_context.cpp:890 ] [spotify:user:pedrospcampos:collectionrootlist] Delta-updated to revision 0,726f6f7400000000000000000000000000000000
16:45:03.222 3 [playlist_be_pl4_context.cpp:394 ] [spotify:user:mejoresplaylistsspotify:playlist:05Hd48jdQIz3s8WRrvGnzf] Synchronization starting: DIFF (from revision 231,152da32078ccb105acaad971662a9f5165f885bb)
16:45:03.228 3 [playlist_be_toplist.cpp:137 ] [spotify:user:pedrospcampos:top:tracks] Updated
16:45:03.228 D [spirc_manager.cpp:1322 ] GAIA: TIMING(21762370) SpircManager::onSubscriptionSuccess
16:45:03.228 D [spirc_manager.cpp:268 ] GAIA: SpircManager::stateTransition, kServiceStatusInSubscribeTx->kServiceStatusRunning
16:45:03.228 D [spirc_manager.cpp:1396 ] GAIA: TIMING(21762371) SpircManager::sendHelloHelper
16:45:03.229 I [app_store_upgrader.cpp:220 ] App TTL file written
16:45:03.229 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:pedrospcampos:rootlist] 'DIFF' request complete
16:45:03.229 3 [playlist_be_pl4_context.cpp:890 ] [spotify:user:pedrospcampos:rootlist] Delta-updated to revision 65,526e4643331fe92416e73074221949206ad8148a (no new changes)
16:45:03.229 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:pedrospcampos:publishedrootlist] 'GET' request complete
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:erikbengtsson:playlist:7Lk7GdufnV2ETkKOeBLne1
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:jakechudnow:playlist:2hpkPxi6bdA2XJBH4Tq7UB
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:mejoresplaylistsspotify:playlist:05Hd48jdQIz3s8WRrvGnzf
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:gkope:playlist:0tYx9AAv5duvwRLCcCJYzB
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:pedrospcampos:playlist:569HkwzVbO0qIKv1WCkGmt
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:pedrospcampos:playlist:0L0wp89eOE6v39prxyECqu
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:pedrospcampos:playlist:2xAd2CuLtaqR9muQMi2YES
16:45:03.229 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:1250443344:playlist:3hFccNFarbKK9undOYmi0L
16:45:03.230 5 [playlist_delta_pl4.cpp:193 ] Add playlist spotify:user:pedrospcampos:playlist:1asPL4ZuKeBRY7MPrFvf1S
16:45:03.230 3 [playlist_be_pl4_context.cpp:988 ] [spotify:user:pedrospcampos:publishedrootlist] Snapshot-updated to revision 65,526e4643331fe92416e73074221949206ad8148a
16:45:03.230 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:pedrospcampos:inbox] 'DIFF' request complete
16:45:03.230 3 [playlist_be_pl4_context.cpp:890 ] [spotify:user:pedrospcampos:inbox] Delta-updated to revision 112,2038f439505c9bbe653b4fb64f6916b4b9978e32 (no new changes)
16:45:03.230 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:erikbengtsson:playlist:7Lk7GdufnV2ETkKOeBLne1] 'DIFF' request complete
16:45:03.230 3 [playlist_be_pl4_context.cpp:890 ] [spotify:user:erikbengtsson:playlist:7Lk7GdufnV2ETkKOeBLne1] Delta-updated to revision 32,d34cd71081c030a64b9a47dc54e3b867230eba34 (no new changes)
16:45:03.242 5 [playlist_be_pl4_context.cpp:278 ] [spotify:user:mejoresplaylistsspotify:playlist:05Hd48jdQIz3s8WRrvGnzf] 'DIFF' request complete
16:45:03.242 3 [playlist_be_pl4_context.cpp:890 ] [spotify:user:mejoresplaylistsspotify:playlist:05Hd48jdQIz3s8WRrvGnzf] Delta-updated to revision 231,152da32078ccb105acaad971662a9f5165f885bb (no new changes)
2015-03-19 16:45:03.429 Spotify Helper[4634:507] Cannot find executable for CFBundle 0x7c03ba90 </Applications/Spotify.app/Contents/Frameworks/Chromium Embedded Framework.framework/Libraries/PDF.plugin> (not loaded)