======================== unified (from filesystem) ========================
                                         'bitrate'  '59.218'
                                        'duration'  '469'
                                          'artist'  'Three Friends'
                                     'text_people'  ''
                                         'release'  'Progsoup 41'
                                           'title'  'School Days'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'doo wop', 'gentle giant', 'avant-garde', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '63'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '101.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 41'
'TBPM' (BPM (beats per minute))                     '101.2'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'School Days'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Three Friends'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '63'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf53.14.0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:audiodatarate'                                '60'
'TXXX:bytelength'                                   '20168043'
'TXXX:canseekontime'                                'true'
'TXXX:duration'                                     '501'
'TXXX:framerate'                                    '25'
'TXXX:height'                                       '226'
'TXXX:lastfmtags'                                   ['progressive rock', 'doo wop', 'gentle giant', 'avant-garde', 'british']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.425307'
'TXXX:sourcedata'                                   'B4A7DD765HH1331509914721354'
'TXXX:starttime'                                    '0'
'TXXX:totaldatarate'                                '322'
'TXXX:totalduration'                                '501'
'TXXX:tracknum'                                     '2422'
'TXXX:videodatarate'                                '255'
'TXXX:width'                                        '400'

========================== row from database ==========================
                                              'id'  1476559
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 41/2422 Three Friends - School Days.mp3
                                         'working'  None
                                         'bitrate'  59
                                    'duration_sec'  469
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  3474802
                                           'mtime'  1620737395
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2422 rock cppex progressive;set pl progspace
                                      'tag_artist'  Three Friends
                                     'tag_release'  Progsoup 41
                                       'tag_title'  School Days
                                             'bpm'  101.2
                                    'search_title'  'days':2 'school':1
                                   'search_artist'  'friends':2 'three':1
                                  'search_release'  '41':2 'progsoup':1
                                     'search_rest'  '2422':3 'classicprogpsy':1 'cppex':5 'pl':10 'progressive':6,8 'progsoup':2 'progspace':11 'rock':4 'set':7,9
                                    'search_combo'  '2422':9 '41':6C 'classicprogpsy':7 'cppex':11 'days':2A 'friends':4B 'pl':16 'progressive':12,14 'progsoup':5C,8 'progspace':17 'rock':10 'school':1A 'set':13,15 'three':3B
                                    'tag_tracknum'  63
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-mixbeat-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'doo wop', 'gentle giant', 'avant-garde', 'british']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737394.7626364  (2021-05-11 14:49:54)
                             'size'  3474802