======================== unified (from filesystem) ========================
                                         'bitrate'  '317.175'
                                        'duration'  '232'
                                          'artist'  'ABC Hit Band'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "super strut (rare priv. rec. moog UK 70's)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '129.6'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '129.6'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "super strut (rare priv. rec. moog UK 70's)"
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'ABC Hit Band'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.11 dB'
'TXXX:replaygain_track_peak'                        '0.945426'

========================== row from database ==========================
                                              'id'  1529214
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/ABC Hit Band - super strut (rare priv. rec. moog UK 70_s).mp3
                                         'working'  None
                                         'bitrate'  317
                                    'duration_sec'  232
                                           'genre'  funk or soul
                                        'filesize'  9236602
                                           'mtime'  1628357785
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY 70_s 70_s) funk or soul
                                      'tag_artist'  ABC Hit Band
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  super strut (rare priv. rec. moog UK 70's)
                                             'bpm'  129.6
                                    'search_title'  '70':11 '70s':13 'moog':9 'priv':5,6 'rare':3,4 'rec':7,8 's':12 'strut':2 'super':1 'uk':10
                                   'search_artist'  'abc':1 'band':3 'hit':2
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '70':5,7 'easy':4 'funk':2 'or':9 's':6,8 'soul':3 'swing':1
                                    'search_combo'  '70':11A,24,26 '70s':13A,19C 'abc':14B 'band':16B 'easy':17C,23 'funk':21 'hit':15B 'instr':18C 'moog':9A 'or':28 'priv':5A,6A 'rare':3A,4A 'rec':7A,8A 's':12A,25,27 'soul':22 'strut':2A 'super':1A 'swing':20 'uk':10A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357785.4635246  (2021-08-07 19:36:25)
                             'size'  9236602