======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '284'
                                          'artist'  "Eric Serra & Gill Dall'Anese"
                                     'text_people'  ''
                                         'release'  'No Stress: Vol. 2'
                                           'title'  'The Big Blue'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '145.685'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'No Stress: Vol. 2'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'The Big Blue'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               "Eric Serra & Gill Dall'Anese"
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'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'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.93 dB'
'TXXX:replaygain_track_peak'                        '0.638543'

========================== row from database ==========================
                                              'id'  1500104
                                            'path'  /data/Music/Bulk/00instruments-classical/Unsorted/Eric Serra & Gill Dall_Anese__No Stress_ Vol. 2__16 - The Big Blue.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  284
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  6837677
                                           'mtime'  1620561859
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Unsorted Dall_Anese__No Stress_ 2__16 prerock classical or classical instruments
                                      'tag_artist'  Eric Serra & Gill Dall'Anese
                                     'tag_release'  No Stress: Vol. 2
                                       'tag_title'  The Big Blue
                                             'bpm'  145.685
                                    'search_title'  'big':2 'blue':3 'the':1
                                   'search_artist'  'anese':5 'dall':4 'dallanese':6 'eric':1 'gill':3 'serra':2
                                  'search_release'  '2':6 'no':1 'stress':2,3 'vol':4,5
                                     'search_rest'  '00instruments':1 '16':9 '2':8 'anese':5 'classical':2 'dall':4 'instruments':12 'no':6 'or':11 'prerock':10 'stress':7 'unsorted':3
                                    'search_combo'  '00instruments':16 '16':24 '2':15C,23 'anese':8B,20 'big':2A 'blue':3A 'classical':17 'dall':7B,19 'dallanese':9B 'eric':4B 'gill':6B 'instruments':27 'no':10C,21 'or':26 'prerock':25 'serra':5B 'stress':11C,12C,22 'the':1A 'unsorted':18 'vol':13C,14C
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561859.1970243  (2021-05-09 14:04:19)
                             'size'  6837677