======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '274'
                                          'artist'  'U2'
                                     'text_people'  ''
                                         'release'  'The Best of 1980-1990 & B-Side'
                                           'title'  'A Room at the Heartbreak Hotel'
                                           'quals'  ("['Q-HAP-2', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
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                                      'lastfmtags'  "['irish', 'classic rock', 'alternative', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '127.605'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best of 1980-1990 & B-Side'
'TBPM' (BPM (beats per minute))                     '127.605'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'A Room at the Heartbreak Hotel'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'U2'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['irish', 'classic rock', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.63 dB'
'TXXX:replaygain_track_peak'                        '0.527094'

========================== row from database ==========================
                                              'id'  1313466
                                            'path'  /data/Music/Bulk/00poprockelectronic/U2/U2 - 1998 - The Best Of 1980-1990 & B-Sides/Cd 2/14 - A Room At The Heartbreak Hotel.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  274
                                           'genre'  rock-pop
                                        'filesize'  6589907
                                           'mtime'  1678927854
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1998 Of Sides Cd 14 At rock pop
                                      'tag_artist'  U2
                                     'tag_release'  The Best of 1980-1990 & B-Side
                                       'tag_title'  A Room at the Heartbreak Hotel
                                             'bpm'  127.605
                                    'search_title'  'a':1 'at':3 'heartbreak':5 'hotel':6 'room':2 'the':4
                                   'search_artist'  'u2':1
                                  'search_release'  '1980':4 '19801990':6 '1990':5 'b':7 'best':2 'bside':9 'of':3 'side':8 'the':1
                                     'search_rest'  '00poprockelectronic':1 '1998':2 'at':6 'cd':5 'of':3 'pop':8 'rock':7 'sides':4
                                    'search_combo'  '00poprockelectronic':17 '1980':11C '19801990':13C '1990':12C '1998':18 'a':1A 'at':3A,22 'b':14C 'best':9C 'bside':16C 'cd':21 'heartbreak':5A 'hotel':6A 'of':10C,19 'pop':24 'rock':23 'room':2A 'side':15C 'sides':20 'the':4A,8C 'u2':7B
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['irish', 'classic rock', 'alternative', 'pop', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678927853.639971  (2023-03-16 01:50:53)
                             'size'  6589907