======================== unified (from filesystem) ========================
                                         'bitrate'  '212.695'
                                        'duration'  '149'
                                          'artist'  'Gil Trythall'
                                     'text_people'  ''
                                         'release'  'Nashville Gold (Switched-On Moog)'
                                           'title'  'Polk Salad Annie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['avant retard', 'country', 'benny hill', 'electronic', 'moog']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth-moog;loc-namerica-country'
                                             'bpm'  '114.1'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nashville Gold (Switched-On Moog)'
'TBPM' (BPM (beats per minute))                     '114.1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth-moog', 'loc-namerica-country']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Polk Salad Annie'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gil Trythall'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['avant retard', 'country', 'benny hill', 'electronic', 'moog']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.40 dB'
'TXXX:replaygain_track_peak'                        '0.729887'

========================== row from database ==========================
                                              'id'  1380920
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Gil Trythall - gil tryhall (1970) -  switched-on moog. nashville gold/01 - Polk Salad Annie.mp3
                                         'working'  None
                                         'bitrate'  212
                                    'duration_sec'  149
                                           'genre'  electronic-experimental-early;mi-earlysynth-moog;loc-namerica-country
                                        'filesize'  3965636
                                           'mtime'  1636915541
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm gil tryhall (1970) switched on moog. nashville gold 01 electronic experimental early;mi earlysynth moog;loc namerica country
                                      'tag_artist'  Gil Trythall
                                     'tag_release'  Nashville Gold (Switched-On Moog)
                                       'tag_title'  Polk Salad Annie
                                             'bpm'  114.1
                                    'search_title'  'annie':3 'polk':1 'salad':2
                                   'search_artist'  'gil':1 'trythall':2
                                  'search_release'  'gold':2 'moog':6,7 'nashville':1 'on':4 'switched':3 'switchedon':5
                                     'search_rest'  '1970':3,4 'country':23 'early':13,15 'earlysynth':17 'electronic':11 'experimental':12 'gil':1 'gold':10 'loc':19,21 'mi':14,16 'moog':7,8,18,20 'namerica':22 'nashville':9 'on':6 'switched':5 'tryhall':2
                                    'search_combo'  '1970':15,16 'annie':3A 'country':35 'early':25,27 'earlysynth':29 'electronic':23 'experimental':24 'gil':4B,13 'gold':7C,22 'loc':31,33 'mi':26,28 'moog':11C,12C,19,20,30,32 'namerica':34 'nashville':6C,21 'on':9C,18 'polk':1A 'salad':2A 'switched':8C,17 'switchedon':10C 'tryhall':14 'trythall':5B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['avant retard', 'country', 'benny hill', 'electronic', 'moog']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636915541.0052173  (2021-11-14 19:45:41)
                             'size'  3965636