======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '310'
                                          'artist'  'Colleen'
                                     'text_people'  ''
                                         'release'  'Captain of None'
                                           'title'  'Holding Horses'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-LOCALNESS-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'french', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '8'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '145.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Captain of None'
'TBPM' (BPM (beats per minute))                     '145.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2015'
'TENC' (Encoded by)                                 'LAME 3.98 (Max 0.9.1)'
'TIT2' (Title/songname/content description)         'Holding Horses'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Colleen'
'TRCK' (Track number/Position in set)               '1/8'
'TSRC' (ISRC (international standard recording code))  'USTJ21538701'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'french', 'experimental', 'ambient']
'TXXX:original release date'                        ['2015', '2015']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.474225'

========================== row from database ==========================
                                              'id'  1370945
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/colleen - captain of none (2015) [mp3 320]/01 - holding horses.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  310
                                           'genre'  electronic
                                        'filesize'  12414656
                                           'mtime'  1636913567
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer colleen captain none (2015) [mp3 320] 01 holding horses electronic
                                      'tag_artist'  Colleen
                                     'tag_release'  Captain of None
                                       'tag_title'  Holding Horses
                                             'bpm'  145.7
                                    'search_title'  'holding':1 'horses':2
                                   'search_artist'  'colleen':1
                                  'search_release'  'captain':1 'none':3 'of':2
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '2015':6,7 '320':10,11 'captain':4 'colleen':3 'electronic':14 'holding':12 'horses':13 'mp3':8,9 'none':5
                                    'search_combo'  '00calmer':8 '00poprockelectronic':7 '2015':12,13 '320':16,17 'captain':4C,10 'colleen':3B,9 'electronic':20 'holding':1A,18 'horses':2A,19 'mp3':14,15 'none':6C,11 'of':5C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'french', 'experimental', 'ambient']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913567.110445  (2021-11-14 19:12:47)
                             'size'  12414656