======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '142'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  'Always On My Mind Elvis'
                                           'title'  'Spanish Eyes'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '97.318'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Always On My Mind Elvis'
'TBPM' (BPM (beats per minute))                     '97.318'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TIT2' (Title/songname/content description)         'Spanish Eyes'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.419624'

========================== row from database ==========================
                                              'id'  1311833
                                            'path'  /data/Music/Bulk/00poprockelectronic/Elvis Presley/MBZ;#Elvis Presley;#Always On My Mind Elvis;#23;#Spanish Eyes.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  142
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  3411479
                                           'mtime'  1622659498
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Elvis Presley;#Always Elvis;#23;#Spanish rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  Always On My Mind Elvis
                                       'tag_title'  Spanish Eyes
                                             'bpm'  97.318
                                    'search_title'  'eyes':2 'spanish':1
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  'always':1 'elvis':5 'mind':4 'my':3 'on':2
                                     'search_rest'  '00poprockelectronic':1 '23':11,14 'always':7,9 'early':18 'elvis':3,5,10,13 'mbz':2,4 'pop':17 'presley':6,8 'rock':16 'rocknroll':19 'spanish':12,15
                                    'search_combo'  '00poprockelectronic':10 '23':20,23 'always':5C,16,18 'early':27 'elvis':3B,9C,12,14,19,22 'eyes':2A 'mbz':11,13 'mind':8C 'my':7C 'on':6C 'pop':26 'presley':4B,15,17 'rock':25 'rocknroll':28 'spanish':1A,21,24
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659497.7685041  (2021-06-02 20:44:57)
                             'size'  3411479