======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '151'
                                          'artist'  '101 Strings Orchestra'
                                     'text_people'  ''
                                         'release'  'Play a Tribute to Bing Crosby'
                                           'title'  'True Love'
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                                      'lastfmtags'  "['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']"
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '134.2'
                                             'key'  '1A'
                                        'acoustid'  '8fc1cae3-7c26-4e93-a4fc-103df2a204e5'
rest: ''

======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '134.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDOR' (Original release time)                      '1978'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'True Love'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '151333'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings Orchestra'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings Orchestra'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Alshire Records'
'TRCK' (Track number/Position in set)               '3/10'
'TSO2'                                              '101 Strings'
'TSOP' (Performer sort order)                       '101 Strings'
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'TXXX:Artists'                                      '101 Strings Orchestra'
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'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:MusicBrainz Release Track Id'                 '7af1daa2-e040-3a5b-a604-6608cfd78335'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '1'
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'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
'TXXX:originalyear'                                 '1978'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.671383'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6cf3d2e2-9188-4452-ba5d-7f7d8bc8ed7a')

========================== row from database ==========================
                                              'id'  1479040
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/1978 - 101 Strings Play a Tribute to Bing Crosby/03 - True Love.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  151
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  3630144
                                           'mtime'  1621705541
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country The 1978 03 electronic generic or radio easy listening
                                      'tag_artist'  101 Strings Orchestra
                                     'tag_release'  Play a Tribute to Bing Crosby
                                       'tag_title'  True Love
                                             'bpm'  134.2
                                    'search_title'  'love':2 'true':1
                                   'search_artist'  '101':1 'orchestra':3 'strings':2
                                  'search_release'  'a':2 'bing':5 'crosby':6 'play':1 'to':4 'tribute':3
                                     'search_rest'  '1978':6 'country':4 'easy':11 'electronic':7 'exotica':2 'generic':8 'jazz':1 'listening':12 'oldies':3 'or':9 'radio':10 'the':5
                                    'search_combo'  '101':3B '1978':17 'a':7C 'bing':10C 'country':15 'crosby':11C 'easy':22 'electronic':18 'exotica':13 'generic':19 'jazz':12 'listening':23 'love':2A 'oldies':14 'or':20 'orchestra':5B 'play':6C 'radio':21 'strings':4B 'the':16 'to':9C 'tribute':8C 'true':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'q-play-2', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'q-bass-3']
                                      'lastfmtags'  ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705540.899102  (2021-05-22 19:45:40)
                             'size'  3630144